Immigration law is second only to tax law in its complexity. Educating yourself with basic information can help you understand what to expect on the journey ahead. Marks Gray’s Immigration Team has assembled a number of resources for you to review and educate yourself on what to expect in your journey.  Please take a moment, to view the many assets available on the right side panel to assist you in your business or individual needs.

Beyond the H1B: A Guide to Work Visa Options for Employers, Foreign Nationals, and Graduating Students 

H-1B visas are one of the most popular and controversial visas used to hire foreign professionals. Because of their usefulness and limited availability, they are difficult to obtain. There is currently an annual cap of eighty-five thousand for new H-1B visas, and within days of the start of the filing season in April each year, the cap is reached. It is time to explore other options.

Business immigration lawyer, author and speaker, Giselle Carson provides a practical guide to lesser-known work visas that could get you just as far as the H-1B visa-as well as creative exemptions to the H-1B cap. She shows you different categories of work authorization and the requirements for each in a straightforward, matter-of-fact style. She also provides insider tips and answers some of the most common questions about work authorization, visas, and immigration law.

Beyond the H-1B is not intended to be a comprehensive legal guide to US immigration. Instead, the book serves as a general resource that can broaden your perspective and surprise you with the different options available to you and your employee

Testimonials & Reviews

L-1B followed by a Successful L1-A for Intracompany Transferee Manager from Canada

Giselle and her team successfully helped me get an L1-B visa in 2015. 2 weeks ago, they did it again by having my L1-B upgraded to a L1-A which will create a strong path to get my green card.

Giselle and her team were always there for us during and after the whole process. There is no way I can describe the feeling I had when my approval notice came in the mail. Looking forward to work with the team in the near future. Thanks for all you do.

P-1 Approval for Professional Soccer Player from Argentina followed by an I-140 Petition and Adjustment of Status/“Green Card”

Almost three years ago I landed with my wife at Jacksonville to start a new stage in my life as a professional soccer player. […] We found the best advice possible with Giselle and her team at Marks Gray. The entire process was successful thanks to excellent teamwork.  […]

Thank you Giselle for all your time invested in make our dreams of build a life here come true.

O-1 Approval for Business Executive from Venezuela followed by Successful “Green Cards” for Him and His Family

I have mixed feelings now that all the process of obtaining our permanent residence documentation is over. I will miss exchanging emails and follow up calls from Giselle and her very professional and warm immigration team.

From day one […] there was always a structured format/process to follow but very simple at the same time […] that would not impose a heavy load of tasks on my side or that would affect my work or other activities. 

Effective and clear communications, reasonable expectations of the success of the process, but always with the comfort […] that we were in the right hands.

Thank you very much for your professional, supportive and sincere efforts, first with our work visa and later with our Green Cards! We always felt you close, sincere and that we were taken care of by the best!  We will always be grateful to you all!

EB-1 Green Card for Outstanding Professors and Researchers for Foreign National from Romania

I cannot be more grateful for Giselle and her team’s outstanding work with my green card application in the EB-1 Preference for Outstanding Professors and Researchers. Giselle was always available to address all my concerns, and her strong motivation contributed significantly to the successful outcome of my case. Her dedication and professionalism are impressive. She, together with her team members Thyra and Lisa, prepared a very strong petition highlighting the contributions of my research work in the field of condensed matter-material physics, my international recognition, publications in peer-reviewed journals, as well as current employer’s need for my services as a professor of physics.

Thank you so very much for your team’s outstanding work with this pivotal green card matter!

I-140 Immigrant Petition followed by a successful Green Card for Foreign Nationals from the Philippines

Atty. Carson and her Immigration Team made us feel comfortable and welcome the very first minute we came to their office. […] Her legal team is very organized, highly efficient, and truly dedicated in their work to get us our immigration documents processed and approved the fastest way possible. […]

Atty. Giselle and her team are a great blessing to us indeed. They are not only the best at what they do, but also — and most importantly — they treated us as family.

Complex H-1B Transfer Approval followed by Successful I-140 Petition for Professional Solutions Architect from India

I have been working with Giselle Carson and her immigration team for a few years and it has been a privilege. She successfully guided and supported us through complex and frustrating immigration challenges, which I will never forget in my life. She responded to questions promptly and educated me and my employer with all possible options. She and her team clearly and effectively worked with us through a difficult H1B extension beyond six years, PERM labor certification and I-140 approvals. The services of the Marks Gray Immigration team are not cheap but the value of what you receive is so much more than what they charge. As a result of their work, the course of my life has changed and I have more control of my future.

My sincere thanks and gratitude to Giselle and her team for providing such fantastic services.

I-129 O-1A Petition, Extraordinary Ability Status, Approval for Physician/Lead Researcher from Brazil

That’s really great news! I can’t thank you all enough for all your hard work. It’s been an immense pleasure to work with you. I’m looking forward to hearing more from you.

P-1 Approval for Professional Tennis Player from Ireland followed by an I-140 Petition

I started working with Giselle and her immigration team about 5 years ago. I was referred to Giselle by a friend of mine who was another very happy client
[…] [S]he successfully helped me, a professional athlete, and my sponsor obtain a P-1 visa.  […]  Giselle is also currently helping me with my green card process to become a permanent resident.   Her and her team are extremely experienced and dedicated to helping all clients meet their goals.   The visa process can be complicated at times but Giselle and her team always take the time to reply to any questions right away. […]

Cannot thank Giselle and her team enough for what they have done for me! They are amazing!

I would strongly recommend Giselle to anyone that needs help with an immigration issue.

I-140 Petition, Schedule A, and Adjustment of Status/“Green Card” Approval with Priority Date Recapturing for a Filipino Nurse and her Husband

Thank you so much for everything you have done. Thank you for taking time to call and share the great news. I honor and value you for your genuine concern and for personally having a relationship with your clients. Thank you from the bottom of my heart. More than words can say, I thank you deeply. Thank you most especially for helping not only me and my husband, but also my family back home in the Philippines who depend on me. You don’t know how much that means to them. Thank you for making a difference in our lives. Thank you for giving hope and being an inspiration. May God bless you abundantly and your family!

P-1A for Internationally Recognized Athlete from Spain and Marriage-Based “Green Card”

I have worked with the Marks Gray Immigration team for about five years and they have always been super responsive, professional and proactive. I just completed my green card interview and it went great. The officer told me “I reviewed your file yesterday and this morning and it was so well prepared, complete and good that I knew this interview was going to be successful (only thing he asked from us were our ID’s and passport since he had everything else on the package). But, my next interview is not going to go so well. There are many things missing and I know they won’t have the documents with them but you have it all here. It is a pleasure to work with files like this.” I’m thankful for the Immigration Team at Marks Gray. They have helped me achieve my immigration goals with diligence and ease and I recommend them without hesitation. Best team ever!!

Cap-Exempt H-1B followed by a Successful I-140 Petition

My employer, a distinguished college, and I have been working with the Marks Gray Business Immigration Team for several years. They seamlessly prepared and obtained my H-1B visa. Now, they continue to provide me with immense happiness, I just found out that my immigrant petition I-140 was approved!

This would not have happened without their commitment, caring and diligent work.

I say Thank You to the Marks Gray Business Immigration team from the bottom of my heart. They answered my questions timely and accurately whenever I asked. Special thanks to Thyra, for her unreserved assistance and hard work.

If you’re looking for an Immigration Team that gets things done, I recommend the Marks Gray Business Immigration Team!

I-129, E-2 Petition, Investor Visa Status, from Small Business Owner from Colombia

The Marks Gray immigration team is excellent. I found them to be knowledgeable, accessible and personally invested in the successful and prompt approval of my case. Because of their work, I am living my dream of running my own business in the U.S. I would definitely recommend them to others.

Elaborate H-1B Transfer from Consulting Company Followed by Successful “Green Card” Status

A few years ago I was on an H-1B Visa working for a consulting company. The company hired bargain, disengaged lawyers with whom I never met to file for my Green Card. These lawyers botched my application resulting in a slew of complications which would have resulted in me having to leave the country permanently were it not for Giselle. I switched companies and lawyers and Giselle personally worked with me and my new employer to transfer my H-1B, resolve the issues from the previous filing, and submit a proper filing for my Green Card.

Throughout the re-filing process I was in constant contact with Giselle and her team which was extremely reassuring given the potential for a dire outcome. My Green Card was eventually approved and Giselle then filed for my spouse’s. Giselle also worked with my brother, my cousin, and their respective employers to file their H-1Bs.

I entrusted Giselle with shepherding me through one of the most precarious situations of my life and she came through. I will forever be grateful to Giselle and the team at Marks Gray.

I-140 Schedule A for Registered Nurse from the Philippines Followed by a Successful “Green Card”

Attorney Giselle Carson of Marks Gray P.A. and her amazing team whom I call “angels” are an absolute pleasure and honour to work with. I feel so very blessed for having them represent myself and my employer. They never gave up on me and from the start they prepared a strong air tight application on my behalf which benefited my case greatly.

I have had a very long journey with my immigration to U.S.A. due to my country of birth being oversubscribed. It has taken “8 years” before my visa number became available. I never thought it would happen… Once it did, they were there to guide me step by step and Giselle and her team, Thyra Reveron and Lisa Grosskruger-Edler, are so knowledgeable with their immigration expertise that I was always at ease with every step that we had to take.

They are so friendly and approachable even when we had the 16 hour time difference any questions I had, they answered them as soon as they were able to.

How do you thank a fantastic team of angels when they have changed your life forever? There are no words to express it but know that I am forever grateful to Giselle Carson, Lisa Grosskruger-Edler and Thyra Reveron and the whole of Marks Gray team. You have changed my future.

I encourage others needing business immigration legal assistance to reach out to Giselle and her team. Her clients are lucky to have them. To the Marks Gray Immigration Team, I say – Keep up the amazing work you ladies do! You are simply amazing.

Successful P-1 Approval for an Internationally Recognized Golfer and I-130/ Marriage-Based Petition and Adjustment of Status

I have worked with the Marks Gray Immigration team for about five years and they have always been super responsive, professional and proactive. I just completed my green card interview and it went great. The officer told me “I reviewed your file yesterday and this morning and it was so well prepared, complete and good that I knew this interview was going to be successful (only thing he asked from us were our ID’s and passport since he had everything else on the package). […]. It is a pleasure to work with files like this.” I’m thankful for the Immigration Team at Marks Gray. They have helped me achieve my immigration goals with diligence and ease and I recommend them without hesitation. Best team ever!!

I-140 Petition Approval for Indian Software Engineer whose Prior I-140 Petition had been withdrawn by Employer and Beneficiary had little Time left in H-1B Status

Good evening! Thanks so much Giselle! This approval was only possible with your amazing knowledge and strategic approach, together with your paralegal team’s tactical methods. Because of you, the petition was submitted in a perfect and timely manner, and it secured USCIS’ approval. Looking forward to working with you and your team on an H-1B/H-4 3-year extension.

I-129 H-1B Petition Approval for Computer Analyst from China Followed by Successful PERM, I-140 and Adjustment of Status/”Green Card” Approval

We will forever be grateful for all you’ve done for us. Thank you Giselle and Thyra!

Successful Immigration Process from TN Nurse Status to “Green Card” through I-130 Petition, Marriage-Based, and Adjustment of Status for Wife from Canada and U.S. Citizenship

From the very first visit to Marks Gray, I felt secure and trusting. You were there when I needed someone to take charge and to guide me. Your warm and kind approach compliment your professional and prompt immigration services. We were delighted to have worked with you and recommend your services to others. We are also thankful that another lawyer referred us to you.  Thank you for everything.

I-130 Petition and Adjustment of Status Process and Naturalization for Foreign National from Brazil

Giselle helped me to conquer my dreams, something that i thought it was impossible! The best immigration lawyer ever!

I-130 Marriage-Based Petition and Adjustment of Status for Foreign National from Canada

Just had a consultation with Giselle and my problems have been solved! This consultation helped clear up so many questions that previous research online couldn’t provide. She not only gave me options for my situation but she also explained what NOT to do. If I hadn’t talked to her I could have made crucial mistakes and prolonged my goal. Everything makes sense now and I’m so happy I talked to Giselle before making any decisions. Definitely recommended! Thank you!

I-130 and Adjustment of Status, Marriage-Based “Green Card” and U.S. Citizenship

Giselle and her assistant Thyra worked with my wife and me through the process of getting her green card through my wife’s becoming a U.S. citizen. They provided sound advice regarding when and where it was best to get married, then helped us to complete the process without a hitch.

Successful Marriage-Based Petition and Adjustment of Status for Foreign National from Canada

My husband and I started working with Giselle 8 months ago and I can’t begin to explain how wonderful it has been! Giselle and her team went above and beyond to make sure we were informed throughout every step of the immigration process. They were always in contact if any news about my status came up. She prepared us for our interview which couldn’t have gone better! With our patience and Giselle’s flexibility, I was able to get my green card in less than a year. We are so thankful for all their help! 10/10 for sure.

I-130 Petition Marriage-Based Approval and “Green Card” Processing through the National Visa Center with a Successful Interview at the London Embassy for a U.K. National

I arrived on Thursday in the late evening to a relatively quiet immigration hall. I was advised to line up in the visitor’s line and waited around 5 minutes. I handed my packet and passport over to a very friendly immigration officer. No real questioning beyond the usual. He said congratulations and passed me over to secondary immigration. I waited perhaps another 5 minutes and then a lady came and took my fingerprints and a signature for my green card. Was told to sit back down and wait. 10 Minutes later I was called over to an office. It was explained that I was being issued a 2 year entry and that I will have to file a form 90 days before it expires to have the restrictions removed. And that was it. Really painless! Thank you so much for all your help, we couldn’t have done this without you. I still haven’t really processed the fact I am here! 

I-130 Petition, Marriage-Based, and Adjustment of Status/”Green Card” Approval for Husband, Wife and Step-Child from Colombia. Wife was a student in F-1 Status Prior to Marriage to U.S. Citizen

Our family would like to thank you for all your AMAZING work on our case and the detailed effort you put in every day. We are thrilled to be permanent residents of this wonderful country. Thank you and GRACIAS from the bottom of our hearts!

I-601, Extreme Hardship Waiver, approval for United Kingdom national married to United States Citizen

We are just beyond happy and cannot thank you enough. We never would have won this case without you. I was also shocked at the short time frame of the approval. We had resigned ourselves to the fact that we may not know anything for another year. We will give you the highest recommendations.

N-400, Application Resulting in Successful Naturalization of French National

Giselle and Thyra, her immigration specialist, provide excellent service. I was very happy to work with them. I am a proud American citizen because of their help.

PERM Certification

That is excellent news! Very exciting! I look forward to our next call and hope you enjoy your vacation!

Green Card Approval

Thank you so much for your continued support over the past four years. Thank you, Lisa and FSCJ! Thank you, Giselle, Ellen, and Marks Gray!

Green Card Approval

This is so wonderful news. My family truly appreciates your team’s efforts! THANKS!

Green Card Approval

Wow this is absolutely incredible! A wonderful surprise to start the week off. I really can’t thank everyone enough for all of the hard work that was put into this entire process and I am incredibly grateful to everyone at Marks Gray and Safariland for helping me along the way. This has been something I have wanted for quite some time and it is a combined feeling of both excitement and relief to know that everything has been approved and the waiting will soon be over.

Thanks again to all involved and I wish everyone the best.


Giselle is my “go-to” for Form I-9 and immigration compliance. I met Giselle over ten years ago when I was the HR Admin at Elkins Constructors. She provided us with practical and relevant guidance on immigration verification and compliance.

Most recently, I had the opportunity to attend her trainings on the New Form I-9 and immigration compliance. She is exceptionally knowledgeable and engaging! She provides HR professionals with the right tools and knowledge to save us time and do things right (in other words, stay out of trouble).
I highly recommend Giselle for corporate immigration and compliance.

We have been working with Giselle and her team for several years to hire and retain top foreign talent. She was introduced to us by our Corporate Attorney. They have provided us with seamless support navigating the long, complex and ever-changing immigration process.

Her team has been instrumental in successfully managing the H-1B cap process and TNs for several IT positions; complex consular and employment green card processes; and most recently EAD expedite.

Their partnership allows us to continue to provide virtual solutions that empower our clients to create guest experiences to drive their business forward.

If you are an HR Manager looking for an experienced corporate immigration team, I recommend reaching out to Giselle Carson at Marks Gray, P.A.

I’m the Vice President at IMC Construction Group. We are committed to executing each client’s project on schedule and within budget from concept to completion. To do that, we need an extraordinary workforce. I have been working with Giselle and her team for several years to hire and retain foreign talent to maintain our amazing workers.

She was referred to us by our Corporate Attorney Jake Peek. She has helped us with H-1Bs, Consular Processing and more. Most recently, she helped us obtain a Green Card for one of our top Estimators. This process took about ten years. It has been a stressful journey but Giselle helped us through it all with patience, empathy and teamwork. Way to Go, Team!

Meeting Giselle for the first time is like being reunited with a long-lost friend. She immediately welcomes you into her space and makes you feel right at home.
She and I met when I was the editor at the Jacksonville Daily Record and she became president of The Jacksonville Bar Association. The newspaper had long published the Bar’s monthly newsletter, which had become a little stale.
Giselle was not only open to updating it, she was a driving force in making that happen. The changes made during her tenure as president were the foundation to the newsletter better serving the Bar’s members.
She is genuinely positive, open-minded and eager to help people and the community any way she can. Plus, she’s a great attorney, always fighting for her clients.
The world definitely needs more people like Giselle. People who are selfless, passionate and compassionate. People who make you feel better just being around them.

I’m a Board Certified Neurophysiologist and Neurologist. My employer and my family worked with Giselle Carson at Marks Gray and her immigration team for over ten years – from H-1B status transfer of employer, multiple H-1B extensions and finally and most rewarding, obtaining my green card.
Her and her team went above and beyond. I want to express my appreciation and give special thanks to them for all their help over the years.

I have worked with Giselle for several years with our immigration needs. She is highly knowledgeable in all U.S. immigration and is very attentive to the needs of our Company. I have reached out with complicated cases and questions and, without hesitation, offer solutions and options. She and her team are true partners and has the best interest for the Company and our employees.

I worked with Giselle and her immigration team for about three years while I was a General Counsel overseeing our immigration matters. She diligently managed our H-1Bs and other work visas and employment-based green cards. Her engagement, expertise and client-focused service are outstanding. Her immigration case reports, consistent communications and educational resources saved our team time and created efficiencies for a process that is uncertain, emotional and bureaucratic. Her services add huge values and exceeded our expectations, every time. I recommend her without hesitation as a go to attorney for U.S. Business Immigration.