Innovative and Strategic.

Sullivent & Fontanez is a veteran-owned, client-centered law firm that uses innovative and strategic solutions for our clients most complex areas of the law. Our attorneys are advocates with a long-standing history and solid reputation within and outside of the legal community.

Representation You Can Trust

Sullivent & Fontanez is a law firm located in Tulsa, OK that’s committed to its clients from all over. We leverage our diverse experiences as lawyers to provide our clients with expert solutions to their complex legal problems. Our attorneys have broad industry experience in the federal government, large corporations, and small business.

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Practice Areas

Why Choose SF Legal Group?

Committed to Our Clients

SF Legal Group is a law firm committed to its clients. We leverage our diverse experiences as lawyers to provide the clients with strategic solutions to their complex legal problems. Our attorneys have broad industry experience in the federal government, large corporations, and small business.

Diverse Legal Experience

Our attorneys bring a broad and diverse level of practice to your complex legal issues.  Our talented attorneys’ backgrounds include corporate law and litigation, government law and contracts, energy, aviation, intellectual property, and trusts and estates just to name a few.    

Strategic Solutions

SF Legal’s talent includes lawyers who are published authors, inventors, and United States Army War College master’s graduates.  Our innovative approach and technical savvy serve our clients well. We are always in your service and remain attuned to your legal needs.

Find a Lawyer / Professional

Search the SF Legal Group team by location and practice area.

Our Practice Areas

Aviation Law

Whether you are looking to acquire or sell an aircraft, are involved with an FAA enforcement action or litigation, our attorneys can assist you with all the complex aspects of aviation law.

Estate Planning

We have talented Estate Planning lawyers to assist you with your estate plan. Our attorneys have literally published the book on how to give you peace of mind when it comes to your assets.

Real Estate

Most of our clients require legal assistance with transactions involving buying, selling, leasing, developing, or managing property interests over long or short terms.

Patents & Trademarks

We have prosecuted countless trademark applications on behalf of its worldwide clients. When it comes to your business, protecting your brand may be the most important thing to do.

Government Contracts

Our Government Contracts team is comprised of lawyers with years of government experience.  This includes years of active duty time as an Army Judge Advocate and current time in the Army Reserves.

Political Law

Our attorneys have diverse backgrounds in government and have been fighting for our clients’ constitutional freedoms from the time we were first admitted to practice law.


Need a fresh start? Our experienced attorneys can help you eliminate your financial debt, obligations, and create a financial plan to restructure your future. It’s never too late for a fresh start.

Oil & Gas

Sullivent & Fontanez attorneys have the expertise that can assist you in all aspects of oil and gas law to ensure the vitality and sustainability of your organization.

White Collar & Investigations

Need representation? Our team of dedicated professionals are well equipped to represent our clients in any white-collar defense and federal investigations.


Ready to take legal action? Our legal team can help you resolve disputes or take action in court. You don’t have to face your legal issues alone, so don’t be, and call us today.

Client Stories

“I have been represented by both Mr. Sullivent and Mr. Fontanez. I can confirm that I was very pleased with their representation. I know both of these gentlemen to be extremely talented and professional. Knowing their character and abilities, I am pleased to give my recommendation!”

– Chris Allgood

“My family and I have worked with Tom Sullivent for more than 14 years. He has helped us with estate planning and business law.

Tom has always been knowledgeable, diligent and proactive. My husband and I worked with Tom to create and update our Trust some years ago, not knowing that my husband would unexpectedly pass away a few years later at a young age. During a time of great grief and stress, it was a relief to know that we had our affairs in order and that I, nor our children, needed to worry about our legal situation because with Tom’s help we had prepared for such an occasion.

Tom is a great problem solver with a calming disposition. I feel good knowing that I have Tom in my corner representing me, guiding me and helping me with my legal needs.

– Vallerie Davis

“As a CERTIFIED FINANCIAL PLANNER™ and a small business owner of several companies, I’ve had the opportunity to work with well over a dozen attorneys throughout the last few decades. I had a former business partner, who happened to also be an attorney, which falsely alleged breach of contract. Mr. Fontanez aggressively addressed the issues and exposed the truth through discovery and depositions. The former business partner dropped the case after Mr. Fontanez exposed him for what he was. Mr. Fontanez truly cares for his clients and has the unique ability to get things done in a timely and professional manner. He is an extremely competent attorney. His personal integrity and character are among the best the profession has to offer. Mr. Fontanez is the best attorney I know. The more serious the issue the stronger the recommendation. He’s the A Team in legal defense.”

– Shawn

Ready to strategize with one of our attorneys?


616 South Boston Ave, Suite 300
Tulsa, OK 74119

6315 East 102nd Street
Tulsa, OK 74137

3030 Northwest Expressway
Suite 200
Oklahoma City, OK 73112

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