U.S. IMMIGRATION SERVICES
Non-Immigrant Visas: Whether you're visiting for business or pleasure, studying, or working temporarily, we can help guilde you to obtain the appropriate visa.
Immigrant Visas (Green Cards): We assist primarily with family-based cases and consult on employment-based, and investment-based immigration.
Asylum and Refugee Protection: Seeking refuge in the U.S.? We can provide expert legal counsel.
Citizenship and Naturalization: Become a U.S. citizen and enjoy all the rights and privileges.
Adjustment of Status: Transition to permanent residency within the U.S.
Removal of Conditions: Secure your permanent residency status.
Why Choose Us?
U.S. immigration law is intricate and constantly changing. It is generally seen as the second most complicated law in the U.S. Hiring an experienced immigration attorney is crucial to increase your chances of success. Guillermo J. Senmartin, P.A. has a proven track record of helping clients achieve their immigration goals. We provide personalized consultations and strategic guidance to navigate the complexities of the U.S. immigration system.
We'll assess your situation, answer your questions, and develop a customized strategy to achieve your immigration goals.
CORPORATE TRANSACTIONS: YOUR BUSINESS, PROTECTED
Contract Review and Drafting
Meticulous review of existing contracts to identify potential risks and liabilities.
Drafting of clear, concise, and enforceable contracts tailored to your specific needs.
Negotiation of favorable terms and conditions.
MEDIATION SERVICES: A PATH TO PEACEFUL RESOLUTION
Civil Litigation: Resolving complex civil cases, such as contract disputes, business disputes, and property disputes.
Family Law: Assisting families in navigating sensitive issues like divorce, child custody, and property division.
Personal Injury: Facilitating fair settlements for individuals who have suffered injuries due to negligence or accidents.
Business Disputes: Helping businesses resolve conflicts and maintain positive relationships.
Why Choose Mediation?
Cost-Effective: Mediation is often more affordable than traditional litigation.
Time-Efficient: Resolve disputes quickly and avoid lengthy court proceedings.
Confidentiality: All discussions and agreements remain confidential.
Control: You have control over the outcome of the mediation process.
Preservation of Relationships: Mediation can help maintain positive relationships, especially in family law and business disputes.
Let's Work Together to Find a Solution
LATEST NEWS

Trump Administration Tightens Restrictions on Immigration
The annual cap for H-1B visas, which are sought after by skilled foreign workers, has been reached earlier than usual, leaving many potential applicants unable to secure a visa

Path to Citizenship Becomes More Accessible for Dreamers
The U.S. government is considering new regulations aimed at simplifying the process for certain immigrants to obtain green cards and become permanent residents.

USCIS Announces New Guidelines for Green Card Applicants
The U.S. Citizenship and Immigration Services has announced an extension of Temporary Protected Status (TPS) for individuals from specific countries facing ongoing armed conflict or natural disasters

Community Involvement:
![]() | Guardian Ad Litem & Lawyers For Children America Advocate . |
![]() | John Edward Smith Outstanding Advocate Award recipient. |
![]() | Kiwanis Club of Little Havana volunteer Board Member and Chairman for multiple programs helping the underserved children of the community. |
ABOUT
Guillermo J. Senmartin, Esq.
With over 25 years of experience in U.S. immigration matters, Guillermo Senmartin has helped more than 117,000 people, earning an almost 99% satisfaction rating from online consultations. He specializes in family-based residency and naturalization cases, with wide experience in asylum, and business immigration, offering consultations on all such matters via email, phone, and Zoom/Teams/Skype.
Beyond his legal practice, Guillermo is a dedicated advocate for children, having served as a Guardian Ad Litem and as a volunteer with Lawyers For Children America, where he helped represent abused and neglected children. He has been honored for this work, receiving the prestigious John Edward Smith Outstanding Advocate Award.
Guillermo is also an active volunteer member of the Kiwanis Club of Little Havana for over 22 years where he has served on the Board of Directors for over 10 years and led numerous initiatives to support underserved children. He chaired programs like the Children's Summer Camp and Carnaval Miami events, focusing on improving the lives of low-income families.
Education & Credentials:
![]() | Juris Doctor, St. Thomas University School of Law. | ![]() | Florida Bar. |
![]() | B.A. in International Relations, Florida International University. | ![]() | U.S. Federal District Court, Northern District of Florida. |
![]() | B.S. in Legal Studies, Nova Southeastern University. | ![]() | U.S. Federal District Court, Southern District of Florida. |
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A.A. in English/Literature, Miami Dade College | ![]() |
Florida Supreme Court Certified Mediator: Circuit Civil, County, Family, and Appellate. |
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Fluent in English and Spanish. |
CONTACT
Location:
MIAMI, FL