About Us

Experienced Attorney in Estate Planning, Business Law, and Intellectual Property
- Pennsylvania
- New York
- New Jersey
- Multiple Federal Courts
- United States Patent and Trademark Office (USPTO)
A Local Attorney in Southampton, PA and Brooklyn, NY Focused on Results
Leo’s law practice is centered on providing legal services with a focus on achieving the best outcomes for his clients in the first place. For that reason, his core values of integrity, professionalism, and client advocacy guide everything he does. Leonid is well-equipped to handle diverse legal challenges and he has been recognized by several legal organizations for his exceptional work and commitment to client service. Leonid is a former member of the American Bar Association (ABA) Advisory Panel. With a focus on fostering the new generation of attorneys, Leonid coached a high school Moot Court team and judged the ABA National Appellate Advocacy Competition from time to time.


Legal Experience & Education
- Bachelor’s Degree in Electrical Engineering – New York Polytechnic University (Now NYU Tandon School of Engineering)
- Juris Doctor (J.D.) Degree – Benjamin N. Cardozo School of Law
- Registered Patent Attorney No. 64,985 – United States Patent and Trademark Office (USPTO)
- Former Associate at Top 25 Am Law/Global 100 Law Firms
Practice Areas in Southampton, PA: Estate Planning, Business Law and Intellectual Property
Attorney Leonid Mikityanskiy has run his own successful estate planning law practice with offices in Southampton, PA and Brooklyn, NY, for over 15 years up to the present time. He particularly specializes in guiding clients through estate planning complexities, from simple to intricate estate plans, Medicaid planning, business succession, and estate administration. His engineering background significantly enhances his patent and trademark work, with many successful patents and trademark registrations obtained for his clients. In his many years of practice, he especially made it his goal to help his clients navigate the complex world of family law, and Leonid is always ready to help and educate his clients, who admire his dedication, professionalism and approachability.


Court Admissions:
- The Commonwealth of Pennsylvania
- New York State
- The State of New Jersey
- United States Patent and Trademark Office (USPTO)
- U.S. Courts of Appeals for the Federal Circuit and the Seventh Circuit
- U.S. District Court for the Eastern District of Pennsylvania
- U.S. District Courts for the Southern, Eastern, and Western Districts of New York
- U.S. District Court for the District of New Jersey
- U.S. District Court for the Central District of Illinois
Representative Matters: Law Offices of Leo Mikityanskiy
High-Net-Worth Estate Planning & Litigation:
- Development and implementation of sophisticated asset protection and wealth preservation plans for high-net-worth individuals and families (over $30 million in assets) as an estate planning attorney in Southampton, PA and Brooklyn, NY.
- Litigation and negotiation of complex estate claims (Will contests, Trust disputes, estate accountings, and estate recovery actions).
- Administration of complicated estates (contested administrations, lost or defective Wills, unknown or missing beneficiaries, and disabled beneficiaries).
- Fiduciary guidance for Trusts and Special Needs Trusts in the long run, ensuring compliance with reporting requirements and applicable laws and regulations.
- Defense against Medicaid fraud and Social Security Administration (SSA) investigations.
Intellectual Property (IP) Protection & Litigation:
- Trademarks: Securing brand protection across diverse industries (fashion, clothing, beauty, food, beverages, technology, and multiple consumer goods), including federal and common law trademark searches and registration.
- Patents: Prosecution and litigation of utility and design patents in various technological fields (HVAC, automotive, medical devices, electronics, clothing, industrial devices, light fixtures, and consumer products). Expertise in patentability searches, patent due diligence, and standards compliance.
- Copyright: Representation in copyright infringement litigation, involving software, photographs, artwork, and other creative works.
- IP Litigation: Successful litigation and settlement of IP disputes, including those involving high-value brands and intellectual property and trade names.
Business & Commercial Law:
- Contract Negotiation & Litigation: Drafting, reviewing, and litigating business contracts, resolving disputes and ensuring compliance.
- Corporate Governance & Succession Planning: Advising on corporate formation, dissolution, governance, sales, and succession planning for businesses of all sizes.
- Commercial Litigation: Resolving disputes involving commercial debts, real property, inter-company conflicts, and partner disagreements.
- Non-Profit Representation: Extensive experience representing not-for-profit organizations (including various charitable and religious organizations) in corporate governance, real estate development, and litigation.
Other Areas of Expertise:
- Personal Injury: Successful negotiation and litigation of personal injury claims for plaintiffs and defendants.
- Family Law: Representation in high-net-worth divorce cases, securing favorable outcomes in equitable distribution, spousal support, and child support. Collaborative divorces and mediation.
Contact Us for Trusted Legal Guidance

