Ronkonkoma
      631-414-0094

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MPMM Law Team

Experience. Dedication. Results.

At McDermott, Pierro, Mandery & Mandery, LLP, you will receive courteous attention and straight–forward, practical advice from a team of experienced legal professionals who are in business to help you, your family and your business.

Whether protecting your rights in court, or advising you on your important business, personal or family matters, the dedicated and experienced attorneys at McDermott, Pierro, Mandery & Mandery, LLP will provide you with courteous, knowledgeable, aggressive representation and counsel at reasonable fees…and provide ANSWERS for your situation.

We look forward to working with you.


Elder Law

We work with individuals and families to ensure our clients are educated in the areas of wills, trusts, tax matters, Powers of Attorney and Health Care Proxies.

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Estate Planning

Our attorneys understand and address the private and significant personal and family issues that are involved in estate planning and administration.

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Criminal Defense

If you or a loved one are facing criminal charges, we can assist you in assessing the situation and understanding your rights and options.

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Civil Litigation

Civil litigation may involve disputes between individuals, businesses, non-profit organizations, municipalities or a range of other entities.

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Tax Planning

We help minimize transfer taxes during and after a client’s lifetime, by maximizing the wealth our clients transfer to their children or to others.

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Business Law

Our business clients include private & public corporations, condominium associations, corporate executives, business owners, professionals and other law firms.

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Matrimonial Law

We strive to address these very personal and difficult matters of matrimonial law with a concerned approach that keeps costs in mind.

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Real Estate

We assist clients in all aspects of ownership, sale and purchase of residential and commercial real estate, co-ops and condos of all types.

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