New Hampshire & Miami Immigration Lawyer

About Attorney Jason M. Sullivan

Jason M. Sullivan has focused exclusively on U.S. immigration law for more than two decades. He has represented hundreds of families, skilled professionals, and employers navigating the federal immigration system, and has appeared before U.S. Citizenship and Immigration Services, the U.S. Department of Labor, the Board of Immigration Appeals, and federal courts. He has also served as an adjunct professor and as an expert witness in immigration-related matters, and other attorneys regularly seek his opinion on difficult cases.

His approach is straightforward. Clients work with him personally, not through layers of paralegals or case managers. Every petition, every supporting document, and every legal argument is reviewed and shaped by an attorney who understands how adjudicators evaluate evidence and where cases succeed or fail. He also holds the firm to a simple communication standard: client calls and emails are answered within one business day, except when he is out of the office.

Years of concentrated practice have given Attorney Sullivan a working knowledge of how USCIS service centers, local field offices, and U.S. consulates abroad actually handle family-based and employment-based cases. That experience translates into filings that anticipate questions before they are asked and documentation packages that leave little room for Requests for Evidence.

The Law Office of Jason M. Sullivan, PLLC is a boutique immigration firm with a practice based in New Hampshire and a Florida office in Coral Gables. The firm handles family-based immigration, employment-based immigration, naturalization, and the difficult problems that arise along the way, including RFEs, Notices of Intent to Deny, prior denials, and cases another attorney started. Clients choose the firm for direct attorney involvement, honest assessments, fixed legal fees, and preparation that treats every filing as if it will be closely reviewed.

Our Approach to Immigration Representation

Immigration law is procedural, but successful outcomes are strategic. Forms alone do not secure approvals. Clear documentation, careful legal framing, and thorough preparation are what move cases forward.

Every case accepted by our firm is prepared as if it will receive close, skeptical examination by a USCIS Immigration Officer or Consular Officer, because it will. We build files that tell a coherent, well-documented story. We identify potential weaknesses before the government does. We organize evidence so that adjudicators can follow the logic of a case without confusion or unnecessary follow-up.

Transparent, Fixed Legal Fees

• No hourly billing.
• No surprise invoices.
• No uncertainty about scope.
• You understand the total legal fee before work begins.
• Immigration law is complex. Your legal billing should not be.

This is not a volume practice. We do not process applications on an assembly line. Clients come to our firm not simply to file paperwork, but to move forward with clarity, confidence, and a strategy that accounts for what comes next.

Strategic Immigration Planning and Problem Solving

Successful immigration cases require more than completing forms correctly. They require understanding how immigration officers evaluate a case, anticipating concerns before they surface, and building the strongest possible legal and factual presentation from the very first filing. Many immigration problems are preventable when they are identified early, and that is where strategic planning makes the difference.

We treat every matter as a problem-solving exercise. Before a petition is filed, we look for the issues an adjudicator is likely to question: gaps in documentation, inconsistencies in the record, prior immigration history, and the discretionary factors that now carry more weight in family-based and adjustment of status cases. Identifying those concerns early allows us to resolve them on our terms rather than reacting to a government challenge later.

When complications do arise, we know how to respond. Our firm handles Requests for Evidence and Notices of Intent to Deny, reviews prior immigration denials to understand exactly what went wrong, and addresses adjustment of status problems, discretionary concerns, and questions involving misrepresentation or credibility. Many clients come to us after something has already gone wrong, sometimes with a case another attorney prepared. In each situation the goal is the same: to present a clear, well-documented case that answers the government’s concerns directly and keeps the matter moving toward approval.

Strategic immigration planning is proactive rather than reactive. It is the difference between hoping a case is strong enough and knowing why it is.

Immigration Services for Families

Family-based immigration is the foundation of our practice in both New Hampshire and Miami. We represent U.S. citizens and lawful permanent residents petitioning for spouses, parents, children, and siblings, as well as couples navigating the K-1 fiancé visa process from initial petition through Adjustment of Status and beyond.

• Marriage-based green cards
• K-1 fiancé visas
• Adjustment of Status
• Consular processing
• Removal of Conditions
• Naturalization and U.S. citizenship

Our family immigration practice covers marriage-based green cards, K-1 fiancé visas, Adjustment of Status, consular processing, Removal of Conditions (Form I-751), and naturalization. These cases require more than correctly completed forms. They require credible, well-organized evidence that demonstrates the legitimacy of relationships and the eligibility of applicants. We prepare that evidence with discipline and attention to detail, knowing that the quality of the initial filing often determines whether a case moves forward smoothly or stalls with requests for additional documentation.

For couples in particular, the stakes are personal. A delayed or denied petition affects where your family lives, whether a spouse can work, and when your life together in the United States can truly begin. We understand those pressures and structure our process to reduce uncertainty at every stage.

Employment-Based Immigration for Professionals and Employers

We represent skilled professionals and their employers in employment-based immigration matters, with particular depth in PERM labor certification, EB-2 National Interest Waiver petitions, employer-sponsored immigrant visa petitions, and carefully selected EB-1 extraordinary ability cases.

• PERM labor certification
• EB-2 National Interest Waivers
• Employer-sponsored immigrant petitions
• Select EB-1 extraordinary ability cases

Employment-based immigration requires precision. PERM labor certification involves strict requirements around recruitment, wage levels, and documentation timelines, and a single procedural misstep can undo months of work. We manage the process from beginning to end, coordinating with employers and employees so that every stage is handled correctly.

For professionals pursuing a National Interest Waiver, we build petitions that explain clearly how the applicant’s work benefits the United States, supported by evidence of what the applicant has already accomplished. EB-1 extraordinary ability cases are accepted selectively. When we take one on, it is because the evidence supports a strong filing, not because the fee justifies the attempt.

We do not handle removal defense, deportation cases, or asylum matters. That narrow focus allows us to maintain higher standards of preparation in the family-based and employment-based matters we do accept.

Immigration Counsel in New Hampshire

New Hampshire is where this practice was built. For more than twenty years, we have represented families and professionals in Manchester, Nashua, Concord, Portsmouth, Derry, Keene, Lancaster, and communities across the state, along with clients in nearby southern Maine and northern Massachusetts. Our New Hampshire clients include spouses and fiancés of U.S. citizens, researchers and faculty at the state’s colleges and universities, engineers and healthcare workers, Canadian professionals working across the border, and employers sponsoring key members of their teams.

We know the local professional landscape, the institutions that employ foreign nationals here, and what New Hampshire applicants can expect as their cases move from filing to biometrics, interviews, and final decisions. That familiarity helps clients prepare for each step instead of guessing at what comes next.

Immigration Counsel in Miami and South Florida

Our Florida office in Coral Gables serves clients in Miami, Coral Gables, and throughout South Florida, including Doral, Hialeah, Miami Beach, Kendall, and the surrounding communities of Miami-Dade County. Miami is one of the most international cities in the country, and its immigration needs reflect that: families reuniting across borders, couples building a life together after meeting abroad, professionals relocating for work, and business owners with ties throughout Latin America, the Caribbean, and Europe.

The Coral Gables office is supported by bilingual staff, so Spanish-speaking clients can discuss their goals, review documents, and follow every stage of the case in the language they are most comfortable with. Miami clients receive the same direct involvement from Attorney Sullivan as clients in New Hampshire, with in-person meetings or secure video consultations depending on what works best for them.

Attorney Sullivan is licensed in New Hampshire, and his practice is limited to U.S. immigration and nationality law, which is federal. That allows him to represent clients before USCIS, the Department of Labor, and U.S. consulates regardless of where they live, including throughout Florida.

Why Preparation Matters More in 2026

Two recent developments have raised the stakes for how immigration cases are prepared. On May 21, 2026, USCIS issued Policy Memorandum PM-602-0199, which directs officers to treat adjustment of status as a discretionary benefit rather than a routine step. The memo did not change who is legally eligible for a green card, but it signals that officers will weigh positive and negative factors more closely, and that meeting the basic requirements may not be enough on its own. Applicants who entered on visitor, student, or other temporary visas face particular scrutiny.

Employment-based cases have seen a similar shift. USCIS continues to decide National Interest Waiver petitions under the three-part test from Matter of Dhanasar, but officers are applying that test more strictly, looking for concrete evidence of an applicant’s impact rather than broad claims about future potential. For families and professionals alike, the practical takeaway is the same: the quality of the first filing matters more than it used to, and problems that might once have been resolved with a quick response now need to be addressed before the case is filed.

A Structured, Attorney-Led Process

Our firm operates differently from high-volume immigration practices. When you retain the Law Office of Jason M. Sullivan, PLLC, you communicate directly with Attorney Sullivan throughout your case. Documentation is reviewed carefully before submission. Filings are organized, deliberate, and thorough. Communication is clear, timely, and responsive.

This is not a practice where your file sits in a queue until a deadline forces action. Cases are managed proactively, with preparation timelines built around strategic goals rather than last-minute urgency. Secure video consultations, encrypted document portals, and organized digital case management allow us to work efficiently with clients whether they are in Concord, Coral Gables, or anywhere else in the country.

Selective Representation

We accept a limited number of new matters each month. That constraint is intentional. It ensures that every client receives the preparation, attention, and strategic thinking that complex immigration matters require. Not every inquiry results in representation. When we accept a case, we commit to preparing it with the thoroughness and discipline it deserves.

Frequently Asked Questions

Can a New Hampshire-licensed attorney handle my immigration case in Miami?

Yes. Immigration and nationality law is federal, and Attorney Sullivan’s practice is limited to that area. He represents clients before USCIS, the Department of Labor, and U.S. consulates whether they live in Florida, New Hampshire, or another state. Miami clients can meet at the firm’s Coral Gables office or by secure video.

Can I speak with someone in Spanish?

Yes. The Coral Gables office has bilingual staff who can help Spanish-speaking clients schedule consultations, gather documents, and stay informed as their case moves forward.

Who will actually work on my case?

Attorney Sullivan does. He reviews your situation, develops the strategy, analyzes the evidence, and prepares your filings. Support staff help with scheduling and administrative tasks, but the legal work and decisions on your case stay with him.

How are your legal fees structured?

Most standard matters are handled for a fixed legal fee that is explained before any work begins. There is no hourly billing and no surprise invoice at the end. Government filing fees are separate and are discussed at the start so you know the full cost.

Can you help if my case was denied or another attorney already filed it?

Yes. A significant part of the practice involves reviewing prior denials, responding to RFEs and Notices of Intent to Deny, and stepping into cases that another attorney started. The first step is a careful review of what was filed and what the government said about it, so the next filing addresses the actual problem.

What kinds of cases does the firm not handle?

The firm does not handle removal defense, deportation proceedings, or asylum cases. If your matter falls into one of those areas, we will tell you so at the outset so you can find the right representation quickly.

How quickly will I hear back after I contact the office?

The firm’s policy is to respond to client calls and emails within one business day, except when Attorney Sullivan is out of the office or on vacation. Many client reviews mention that responsiveness as a reason they chose the firm.

Schedule a Consultation With Attorney Jason M. Sullivan

Every case begins with a structured consultation, held in person or by secure video, where Attorney Sullivan reviews your situation, your goals, and any concerns in your history that could affect the outcome. You will learn which legal pathways are realistically available to you, how long the process is likely to take, what the government will expect at each stage, and what the fixed legal fee will be for most standard matters. Whether you are in New Hampshire, Massachusetts, Maine, or Miami, you will leave with a clear understanding of your options, whether or not you decide to move forward with the firm. If we proceed together, your case will be prepared with care, discipline, and strategic intent from the first document to the final decision.