Providing Zealous Defense
For Over 25 years

An Experienced And Compassionate Criminal Defense Attorney

At The Mattern Law Firm, our law firm is entirely dedicated to supporting our clients’ fight for justice with the very best quality legal representation and advice. When you choose Lisa Mattern as your criminal defense attorney in Los Angeles CA, she will handle every aspect of your case personally, including all court appearances. You never have to worry about being passed off to a junior attorney or case manager or having to discuss your confidential legal matter with someone you don’t trust completely.

What’s Special About The Mattern Law Firm

Experience: Any attorney fresh out of law school will be familiar with the letter of the law, but this is by no means all that is required to be an effective criminal defense attorney in Los Angeles CA. At The Mattern Law Firm, our level of expertise extends beyond the letter of the law and even beyond the large body of case law associated with the types of charges we handle. Our 25+ years of experience handling a wide array of charges in every courtroom in Los Angeles, Orange, Ventura, Riverside, and San Bernardino counties has given us an insight into how our local judicial system really works. Each county handles its cases differently, as does each courthouse and, to a large extent, each individual courtroom. Having an attorney on your side that knows and understands those differences can make a big difference in your case.

Integrity: Some attorneys are content to tell their clients whatever they want to hear, even if this means allowing a client to unwittingly pursue a strategy that is virtually destined for failure. This doesn’t happen at The Mattern Law Firm. We have the integrity required to tell our clients the truth about the outcomes they can reasonably expect to achieve in their specific case. We don’t make empty promises or provide false hope. Our only promise is one we can definitely keep—to work hard to help the client achieve a result that is acceptable to them through tireless investigation, analysis, and preparation.

Compassion: We understand that behind any criminal charge is a person, with a name, with a family, and with a life story that is very personal to them. Each of our clients is a mother or father, a sister or brother, a son or daughter. Being charged with a crime can be stressful for the person accused of a crime, as well as their family.  Some of our clients have no family and need someone to talk to, someone to offer encouragement and hope. We take the time to get to know each of our clients because we care. And since we know that a conviction carries with it a lifetime of potential issues, we reach beyond the present to find a solution for the future.

Our Team

Dan Mulrenin

Dan Mulrenin


Patricia Kossitch

Patricia Kossitch

Office Manager

Contact The Mattern Law Firm Today

To schedule a consultation with attorney Mattern, call 310-807-1263 or fill out the online contact form.