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also known as Thomas A. Sirianni, Esq.
About Thomas A. Sirianni, Esq.
Thomas A. Sirianni, Esq. is an experienced Long Island attorney with over 26 years of courtroom experience representing clients across Nassau County and Suffolk County, New York. A graduate of Touro Law Center (Jacob D. Fuchsberg Law Center) in 1998 and admitted to the New York State Bar in 1999, Tom has built a results-focused law firm centered on four core practice areas: foreclosure defense, landlord-tenant and eviction law, residential and commercial real estate, and Second Amendment firearms defense.
Over more than two and a half decades of practice, Tom has handled several hundred foreclosure defense matters, hundreds of landlord-tenant and eviction proceedings, thousands of real estate closings and transactions, and many firearms and pistol licensing cases throughout Long Island.
Foreclosure Defense Across Long Island
Tom represents Long Island homeowners facing foreclosure in Nassau County Supreme Court and Suffolk County Supreme Court. He handles every stage of New York's judicial foreclosure process, including responding to foreclosure complaints, CPLR 3408 mandatory settlement conferences, loan modification negotiations, contested foreclosure litigation, orders to show cause to stop foreclosure sales, and short sale negotiations. With New York foreclosures often taking two to four years to resolve, having an experienced attorney involved from the start can be the difference between losing a home and keeping it.
Notable Result: In one Long Island foreclosure matter, Tom reduced a homeowner's outstanding mortgage payoff from approximately $2.7 million to $600,000 — convincing the lender to accept the reduced payoff and allow the client to remain in the home. The result took the homeowner from negative equity to roughly $2 million in instant home equity.
Prior results do not guarantee a similar outcome.
Landlord-Tenant Representation
Tom represents both landlords and tenants throughout Nassau County and Suffolk County. For landlords, he handles nonpayment proceedings, holdover actions, lease enforcement, and warrants of eviction in Nassau District Court, Suffolk District Court, and NYC Housing Court. For tenants, he defends against improper evictions, lease disputes, and landlord misconduct under New York's HSTPA tenant protections. His office is built for high-volume eviction work and moves cases through district court efficiently — handling hundreds of landlord-tenant matters across Long Island.
Real Estate Closings and Transactions
Tom represents buyers, sellers, and investors in residential and commercial real estate transactions across Long Island. His real estate practice — built on thousands of completed closings — includes contract review and negotiation, title issue resolution, lender coordination, closing representation, and commercial leasing. Whether you are buying your first home, selling an investment property, or closing on a commercial deal, Tom protects your interests at every stage.
Second Amendment and Firearms Defense
Tom defends New Yorkers charged with firearms offenses and represents pistol license applicants and permit holders across Nassau, Suffolk, and surrounding jurisdictions. New York has among the most restrictive gun laws in the country — including the SAFE Act, the Concealed Carry Improvement Act (CCIA), and strict pistol licensing requirements. Tom handles cases involving criminal possession of a weapon, CCIA violations, SAFE Act charges, sensitive location violations, weapons-related criminal defense, and the full range of pistol licensing issues — including pistol permit applications, denials, revocations, suspensions, and appeals before Nassau and Suffolk County licensing officers.
A Practical Approach to Urgent Legal Problems
Tom's clients typically come to him in moments of crisis — a foreclosure complaint just served, a tenant who hasn't paid in months, a closing falling apart days before signing, an arrest involving a firearm, or a pistol permit suddenly revoked. He answers his own phone, returns calls quickly, and offers free consultations seven days a week from 6 AM to 8 PM. His practice is built around fast response and direct attorney access — not gatekeepers, schedulers, or layers of associates.
Education & Admissions
Touro Law Center (Jacob D. Fuchsberg Law Center), J.D., 1998
Admitted to the New York State Bar, 1999
Service Area
Tom serves all of Long Island, including every town and village across Nassau County and Suffolk County, from the Queens border to Montauk.
Client Testimonials
"I used Thomas for my loan modification. It was a long drawn out process, but he got it done. He was very informative all the way. Would definitely recommend him." — Eric B.
"Excellence and professionalism. Mr. Sirianni was by far the smartest decision I made in a great time of need. He went above and beyond for my family and helped when we needed it most. I can never be grateful enough." — Larry A.
Read more client reviews on Google.
Testimonials reflect the experiences of individual clients and do not guarantee a similar outcome in any matter.
Get in Touch
Whether you need a Long Island foreclosure defense attorney, a Nassau County eviction lawyer, a Suffolk County real estate attorney, or a New York Second Amendment defense lawyer, Tom is available seven days a week with free consultations from 6 AM to 8 PM. Use the contact information listed on this Avvo profile to reach Tom directly about your case.
Attorney Advertising. Prior results do not guarantee a similar outcome. The information provided on this profile is for general informational purposes only and does not constitute legal advice. Reading or interacting with this profile does not create an attorney-client relationship. An attorney-client relationship is formed only by a written agreement signed by both Thomas A. Sirianni, Esq. and the client.
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Practice Areas
26 years | 300 cases
26 years | 500 cases
26 years | 1,500 cases
26 years | 4 cases
We have not found any cost information for this lawyer
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Chat withState: New York
Acquired: 1999
Lawyer disciplined by state licensing authority in 2014
1 Pine Valley Road, Oyster Bay, NY, 11771
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This lawyer was disciplined by a state licensing authority in 2014.
Suspension issued in NY, 2014
updated on 10/20/2016Suspended means an attorney lost his or her license to practice law for a period of time. The attorney typically returns to practicing law when the suspension expires.
Suspension issued in NY, 2014
updated on 05/08/2015Suspended means an attorney lost his or her license to practice law for a period of time. The attorney typically returns to practicing law when the suspension expires.
Stayed Suspension issued in NY, 2014
updated on 10/20/2016Stayed suspension means the attorney has been suspended, but that the suspension is placed on hold (and ultimately removed) if the attorney complies with certain requirements.
1999 - Present
Attorney, Thomas A. Sirianni, Esq.
N/A
J.D.
English
Legal Answers
If a landlord is bound by the notice it served on the tenant then can a judge disregard that
01 May 2026
Can I evict my commercial tenant and terminate full lease?
01 May 2026
Which marshall is right about the laws regarding discrepancies with the unit number for eviction?
30 Apr 2026