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With our main office located in Long Island, the Law Office of William J. McDermott LLP is a law firm active in the counties of Nassau and Suffolk, as well as the New York City boroughs.  Our office concentrates its practice in: Commercial Debt Collection, Real Estate as well as Estate and Trusts. We have a broad range of experience and know how in each.  We practice in all courts in the State of New York.   At our Law Office we pride ourselves on our care and attention of a private firm, with the vigor and tenacity of our fellow larger firms, without the additional costs.

Feel free to contact William J. McDermott and his office today to give us the opportunity to create a plan that will fulfill your needs, and in the end help you.


Commercial Debt Collection and Litigation

Our firm practices in the areas of commercial debt collection litigation and the enforcement of creditors' rights. We are experienced, aggressive, resourceful, and persistent. Our debt collection clients include large media companies and small service related corporations; landlords, law firms, consultants, and other professionals; 

Our debt collection cases have involved matters including:

  • breach of contract;

  • Loans, guaranties, letters of credit, and other extensions of credit;

  • Debts for goods delivered and services rendered;

  • Attorneys' fees and fees owed to accountants and other professionals, including consulting fees;

  • Rent arrears and unpaid condominium common charges;

  • Suits seeking recoveries based on unjust enrichment, such as claims based on quantum meruit (fair value for worked performed or goods supplied in the absence of a formal contract); and

  • A wide variety of contract-related litigation.


Residential and Commercial

Law Office of William J. McDermott, LLP. provides its clients with a wide variety of real estate solutions. WJM regularly represents buyers and sellers of commercial and residential properties, including one to four-family homes, cooperatives and condominiums. In addition, WJM provides legal representation for both commercial Landlords and Tenants for the preparation and review of lease instruments.

Mr. McDermott, who leads the firm’s operations, began practicing real estate law in 1989. For more than twenty-five years, he has consistently practiced and assisted buyers and sellers minimize the complexities as they navigate through their particular real estate transaction.  You will have a hands on attorney who will personally handle your real estate needs.



Estate Planning, Estate Management, Wills, and Trusts

Having a comprehensive plan prevents family disputes and ensures that assets are distributed in the manner you intend. Proper planning also protects assets from being depleted by long term care costs during life and from estate taxes after death. Significantly, a proper plan will ensure that minor children are provided for in the event that both parents suffer an untimely passing.

We offer a full range of planning services for estates of all sizes and complexities, including:

  • Wills

  • Trusts

  • Revocable and Irrevocable Trusts

  • Financial Powers of Attorney

  • Health Care Proxies

  • Insurance Planning (ILITs)

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