Joseph Lassen

Joseph Lassen is a San Antonio lawyer at The Law Firm of Joseph Lassen who focuses on divorce, child custody, child support, and other family law matters. He also handles DWI, drug possession, bankruptcy law, business law, and estate planning matters. He represents clients through trials, mediation, and settlement negotiations, adapting his approach to the circumstances of each case. He emphasizes personal attention while protecting clients’ rights and pursuing practical resolutions to difficult and often stressful legal problems.

Joseph earned his J.D. from Brooklyn Law School in 2002. He earned his B.S. in Legal Studies from John Jay College in 1993. He began practicing law in New York and New Jersey in 2003 and was admitted to the Texas Bar in 2014. His education and multistate experience support his work across family, criminal, bankruptcy, business, and estate planning matters for clients facing varied legal concerns in Texas courts.

Joseph served with the New York City Police Department for 20 years and retired as a lieutenant before becoming an attorney. He worked in the NYPD prosecutor’s office while attending law school, handling high-profile corruption matters. He later gained experience with a personal injury practice in San Antonio and Corpus Christi and a high-volume San Antonio family law practice. His background strengthens his courtroom judgment, negotiation skills, and client advocacy.

Joseph Lassen belongs to the Texas Bar Association, San Antonio Bar Association, and New York Bar Association. He brings law enforcement and legal experience to clients dealing with family disputes, criminal allegations, financial concerns, and planning needs. He works to explain legal options clearly while preparing matters for negotiation or court when necessary. His practice reflects responsive service, practical problem-solving, and determined representation across a broad range of legal matters.

Law Office Affiliations

• Partner, The Law Firm of Joseph Lassen
• Member, Texas Bar Association
• Member, San Antonio Bar Association
• Member, New York Bar Association

Licensed State

• Texas

Education

• Brooklyn Law School
  Juris Doctor (JD)
• John Jay College
  Bachelor of Science (BS)