Over 30 Years Combined Experience

Designed to Meet Your Legal Needs

A History of Proud Advocacy

Welcome to Plaisance Law

Plaisance Law works with clients and attorneys to put your best case forward. We focus on crafting innovative and persuasive legal arguments. We are proud to say most of our “clients” are other attorneys.

We prepare anything from motions in limine and motions for summary judgment to emergency supervisory writs and appeals. Our goal is to provide the research and writing your case needs. We handle all cases, from criminal and family law to personal injury and commercial litigation. While we work to avoid appeals by assisting in thoughtful motion practice, we are prepared to take any appeal and writ.

We have filed and argued appeals in every Louisiana appellate court, the Louisiana Supreme Court, the United States Fifth Circuit Court of Appeals, and the United States Supreme Court. Plaisance Law’s attorneys, Mark D. Plaisance and Marcus J. Plaisance, are uniquely qualified to put your best case forward, from Washington Parish to Washington, D.C.

More About Us


Mark D. Plaisance has personally handled over 500 appeals and writs throughout his career. He is proud to say a majority of those cases were referred by other attorneys. His attention to detail and experience provide a competitive advantage to our clients.

Personal Injury

Marcus J. Plaisance has personally helped hundreds of clients recover millions of dollars in personal injury cases. While every case is different, Marcus will determine the best path for your personal injury claim. Contact us today to discuss your case.


Plaisance Law proudly works with attorneys to put your best case forward. We provide an outside perspective through unparalleled research and writing. We consult in all stages of litigation and through trial. Our goal is to provide a complete record, whether to avoid an appeal or to prepare for one.