Business Details
36 Years
experience
Your Trusted Long Island Legal Partners
Founded in 1990, Markotsis & Lieberman is a general practice law firm dedicated to providing high-quality legal services with personalized attention. Our team of experienced attorneys specializes in real estate law, corporate and commercial litigation, business transactions, estate planning, and personal injury cases. With over three decades of service to individuals and businesses on Long Island, we prioritize understanding client needs through direct consultation and leveraging our legal expertise to achieve optimal outcomes.Our attorneys maintain active roles in professional organizations like the Nassau County Bar Association and have earned recognition such as Metro New York Super Lawyer awards. We combine deep local knowledge with a commitment to integrity, ensuring clients receive tailored legal solutions that protect their interests in complex matters ranging from property transactions to business disputes.
Services
Real Estate Law
Corporate Litigation
Estate Planning
Personal Injury
Commercial Transactions
Landlord Tenant Law
Wills & Trusts
Town Violations
Probate Proceedings
Business Formation
Details
- Year established: 1990
Highlights and features
- We offer 30+ years of combined experience in Long Island legal matters
- Our attorneys hold Super Lawyer recognitions in business litigation
- We provide personalized attention with direct attorney communication
- We handle complex cases across real estate, corporate, and personal law
- We maintain active leadership roles in local legal professional organizations
What people say
Genuinely cares about people
Prompt and professional
Exceptional level of service
Resolved issue with extreme success
True professionals
Services
Real Estate Law
Our real estate attorneys handle residential and commercial transactions, landlord-tenant disputes, title issues, and town violations. We protect clients during property purchases, sales, and financing while resolving code violations and lease conflicts. With deep local knowledge, we guide clients through complex real estate legal matters from contract negotiation to closing.
Corporate Litigation
We represent businesses in commercial litigation matters including contract disputes, collections, and partnership conflicts. Our attorneys aggressively pursue remedies while seeking cost-effective resolutions through negotiation, mediation, or trial representation. We defend against business-related claims while protecting our clients' financial interests and operational continuity.
Estate Planning
We create comprehensive estate plans using wills, trusts, and advanced directives to protect assets and ensure client wishes are honored. Our services include probate administration, power of attorney documents, and healthcare proxies that provide peace of mind for families and business owners.
Personal Injury
We advocate for injury victims seeking compensation for medical expenses, lost wages, and pain and suffering. Our representation covers automobile accidents, slip-and-fall incidents, and workplace injuries through insurance negotiations or litigation to secure fair recovery for our clients' physical and financial damages.
Business Formation
We advise on optimal business structures and handle entity formation for corporations, LLCs, and partnerships. Our services include drafting operating agreements, buy-sell arrangements, and contract negotiations that establish strong legal foundations while protecting business owners' interests.
People
Douglas M. Lieberman
Partner
Partner with nine consecutive Super Lawyer recognitions in business litigation. Former Nassau County Bar Association Board member and current Academy of Law Board member with extensive commercial litigation experience.
James C. Markotsis
Partner
Co-founding partner and active Grievance Committee member. Provides business and real estate legal counsel with decades of experience handling transactions and disputes for Long Island businesses.
George Neofitos
Partner
Partner since 2025 with significant experience in real estate transactions and corporate matters. Contributes to the firm's growth through expertise in commercial and residential property legal issues.
Vassilios Proussalis
Associate
Associate since 2020 specializing in real estate and business transactions. Provides dedicated client service with prompt communication and thorough legal analysis for property and commercial matters.
Questions
What areas of law do you specialize in?
We specialize in real estate law, corporate litigation, estate planning, personal injury, business transactions, and town violation defense across Nassau County and Long Island.
Can I get a free consultation?
Yes, we offer free initial consultations to discuss your legal needs and determine how our experienced attorneys can help resolve your specific matter.
How do you handle real estate transactions?
We guide clients through residential and commercial property purchases, sales, financing, and dispute resolution while protecting their interests from contract negotiation to closing.
Are you available during the pandemic?
Our attorneys work remotely and remain fully available via phone and email for all legal services while maintaining normal business operations.
Do you handle business formation?
Yes, we advise on entity selection and handle business formation for corporations, LLCs, and partnerships with customized operating agreements and legal protections.
