Providing Comprehensive Legal Solutions
Since 1955
Our renowned team of attorneys handle a wide range of legal matters for individuals, families and businesses throughout Southeastern Pennsylvania.
High-Quality Legal Service When You Depend On It
By the time you are ready to make the call to an attorney, you are probably in need of urgent, fact-based and results-oriented legal help.
At O’Donnell, Weiss & Mattei, P.C., we have been delivering that level of high-quality legal help to individuals, families and businesses in Southeastern Pennsylvania since 1955. As a law firm practicing in many different legal areas, we are equipped to guide you toward a resolution whether your case involves a business dispute, a criminal charge, a family law issue or another legal matter.
Reaching a successful outcome begins with our commitment to open communication and a knowledge-based, team approach. We strive to utilize the latest technology while endeavoring to develop and maintain personal relationships, providing individualized service from the first time you contact us. Your call to OWM Law at 610-323-2800 will be met with personable, professional staff and a prompt response from one of our trusted lawyers.
Our Practice Areas

Business & Finance

Civil Litigation


Elder Law

Estate Planning

Family Law

Probate & Estate Administration

Real Estate & Land Use

Special Needs Planning

Personal Injury
Comprehensive Solutions
At O'Donnell, Weiss & Mattei, P.C., we bring experience and knowledge in a wide range of legal practice areas, so we can help you with almost any legal problem you might have.
With a large and diverse team, we can handle problems that cross over into multiple legal areas. Further, we can recognize problems in other legal areas that many single-practice law firms might not see. We are here to give you the peace of mind that comes from knowing your legal concerns are covered, no matter how complex they might be.
From our law office in Pottstown, we represent clients throughout Montgomery, Chester and Berks counties.
Your Hometown Law Firm
Our law firm started all the way back in 1955, when William O’Donnell, Jr., Alvin L. Weiss and Emidio J. Mattei first put up our shingle in Pottstown. Since then we have grown to fourteen attorneys, a dedicated group of assistants and paralegals, and a second office in Phoenixville, Pennsylvania.
All of our lawyers share the same dedication to being the hometown law firm for all of Southeast Pennsylvania.