Our firm specializes in helping people and corporations with all their legal needs. We are available to help you with all of your real estate endeavors.

Mission Statement

Contact Information and Hours

Our Firm

Law Office of Dean Mastrangelo, PC

575 Underhill Boulevard, suite 203

Syosset, NY 11791

For the past 20 years we have been conducting closings in Nassau County, Suffolk County, and NYC.

                             Our Attorney:

Law Firm

Dean Mastrangelo, Esq.

With more than 20 years experience, Dean primarily focuses on real estate law and transactions.


We've been practicing real estate law for over 20 years and we've found that our clients truly appreciate the time and effort we put into every aspect of their transaction. We're here to help you succeed and that's something we don't take lightly.

At Law Office of Dean Mastrangelo, PC we are here to listen to your needs and help you accomplish your goals in any way we can.  We know that buying or selling a property can be a complicated and confusing moment in your life.  Our goal is to make your transaction happen as easily and smoothly as possible and take the pressure off of you. 

Our office has been focusing on real estate in Nassau County, Suffolk County, New York City and the surrounding areas for many years.  We conduct closings in our conveniently located office in Syosset.  End your search for a real estate attorney here.

Hours: Mon - Fri 9:30am - 6:30pm

Saturday by appointment only