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Our Practice Areas

Established in 1979, Mark H. Weiss P.C. provides highly personalized and professional legal service to our Long Island clients. For the last 20 years, the firm’s practice has focused on legal protections for elder citizens and individuals with special needs. We employ our expertise in estate planning issues to promote the health, safety and welfare of vulnerable adults.

Commack Estate Planning | Mark H. Weiss

Estate Planning

We design comprehensive, personalized plans to reduce your tax liability, secure your retirement savings and allow you to transfer assets to your heirs.

Commack Elder Law Attorney | Mark H. Weiss

Elder Law

We provide effective legal safeguards so vulnerable seniors can enjoy peace of mind.

Commack Probate and Administration of Estates | Mark H. Weiss


Probate is the judicial process whereby a will is "proved" in a court of law and accepted as a valid public document that is the true last testament of the deceased.

Commack Personal Injury | Mark H. Weiss

Other Services Offered

We advocate strongly for you or your loved ones no matter the cause.

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