Staten Island's Leading Commercial & Residential Law Firm

About Us

William J O'Neill

My Father Lambert J. O'Neill started the law firm in 1953 straight from Brooklyn law school. I also graduated from Brooklyn law school and worked with my Father since I was 11 years old, I took over the firm in 1981 and have had a successful career since then. I describe myself as a genetically engineered attorney.


William represented thousands of clients in cases involving foreclosures throughout the mortgage crises which included creditors taking judgments, mortgage defaults, landlord tenant issues, judicial and non-judicial liens on property, clouds on title, mortgage defaults, escrow impound discrepancies, and other real estate related issues.

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Our Practice

Practice Areas

  • Commercial and Residential Sales 
  • Administrative Probate
  • Landlord tenent Litigation
  • Wills and Estate Planning
  • Real Estate Sales Contracts

Our Approach

At Law Firm, we specialize in bringing the law to your corner. We are dedicated to understanding what results you want and to helping you understand what actions we can take on your behalf. We will work with you every step of the way to make sure that you understand the choices you are making and feel empowered to make them.

A Team in Your Corner

Every morning, our legal team has a meeting to discuss our cases. This means that no matter who you go with in our firm, the expertise of the whole team weighs in on your case. 

Legacy of Success

Law Firm has been working together for 30 years and has a proven track record of success. We use that experience to help you down a path to the results you need. Check out our success stories, and then schedule your free phone consultation today.

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