About Us

Experienced Attorney in Estate Planning, Business Law, and Intellectual Property
Leonid Mikityanskiy is a seasoned attorney with nearly twenty years of experience practicing law. He provides expert legal advice in Estate Planning, Business Law, and Intellectual Property. Leonid has successfully guided individuals, families, and businesses through complex legal challenges with personalized solutions and strategic representation.
Leonid is Admitted to practice in:
- Pennsylvania
- New York
- New Jersey
- United States Patent and Trademark Office (USPTO)
A Legal Advocate Focused on Results
Leo’s law practice is centered on providing legal services with a focus on achieving the best outcomes for his clients. 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.
In nearly 20 years of practicing law, Leonid has developed an individualized approach for each of his client’s needs, providing skilled, thoughtful and insightful counseling. Although Leonid has years of experience working in top global law firms, he never forgets that the reason why he got into the practice of law is to help people find the best solutions to their problems.


Legal Experience & Education
Strong Technical & Legal Background
- 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 – United States Patent and Trademark Office (USPTO)
- Former Associate at Top 25 Am Law/Global 100 Law Firms
Leonid combines technical expertise with legal insight, and clients appreciate his personalized approach, characterized by attention, patience, and dedication. His experience at top global law firms has honed his skills, yet his passion to help individuals remains.
Practice Areas
Leonid has run his own successful law practice with offices in Southampton, Pennsylvania, and Brooklyn, New York. He 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 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.
Leonid is also an experienced litigator and trial attorney, fighting cases in federal and state courts for nearly 20 years. Leonid has assertively enforced and defended his clients’ rights in the most difficult business, matrimonial and intellectual property litigation battles. Leonid will fight to protect your rights and to get the best possible outcome for you.


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
The Law Offices of Leo Mikityanskiy has extensive experience across diverse legal areas, providing comprehensive legal solutions to a wide range of clients and matters. Our expertise includes:
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 $30M in assets).
- 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, 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
At The Law Offices of Leo Mikityanskiy, P.C., we are committed to protecting your legal rights and securing your future. Whether you need help with estate planning, business litigation, or intellectual property matters, we are ready to provide expert legal representation.
Southampton, PA – (215) 357-1400
Brooklyn, NY – (718) 256-3210
