A Former Prosecutor. A Relentless Attorney.

Practice Areas

Drug Crimes

In the state of New York, drug crime laws are particularly strict. A drug offense conviction can have a lasting impact on your record, affecting your life and future. It’s essential to work with an experienced attorney to fight back against these charges and protect your future.

Sex Offenses

Sex offenses can ruin your personal and professional reputation. It can also impact where you are able to live. It’s crucial to vigorously contest any sex crime charges to avoid this outcome.

Gun Crimes

Gun crimes involve possession and suppression. Hire an experienced attorney who understands how possession can change your case.

Violent Crimes

Violent Crimes can follow you throughout your entire life. Hiring the right attorney can change the projection of the rest of your life following a violent crimes charge.

Theft & Burglary

All criminal convictions are bad, but a theft crime conviction can be particularly negative. Theft crimes are considered “crimes of moral turpitude,” which means it reflects negatively on your character. You need to avoid a conviction at all costs.

Juvenile Offenses

Based on the age of the offender, there are protections granted under the law that are not available for adults.

DWI/DUI Defense

At the Louis C. Mussari Law Firm, we understand the stress and uncertainty that come with facing DWI/DUI charges. Our deep knowledge of DWI/DUI laws allows us to provide you with a robust defense, aimed at minimizing penalties and safeguarding your rights.

Fraud & White Collar Crimes

Fraud, embezzlement and other white collar crimes usually involve a lot of money and are usually charged as serious felonies with major fines and long prison sentences attached to convictions. You need an attorney with the experience, knowledge and tenacity to defend you successfully.

Every Case Is Important

Whether you are facing misdemeanor charges or a prospective life sentence for a major felony, Louis C. Mussari treats your case seriously. He goes above and beyond to gather all the evidence available to build a steadfast case that the prosecution cannot strongarm away. He has extensive experience with serious criminal allegations such as murder, rape, assault and battery, weapon offenses, drug trafficking, drunk driving and identity theft.

Ask Yourself: Can You Afford Not To Call?

Photo of Louis C. Mussari


Mike Gherman
Mike Gherman
I called Louis Mussari Saturday June 1 told him about what was going on with my Daughter when she came back in from Canada I have to tell you he was on it right away and got released this after noon . Got to say he was the best..
Jameel Williams
Jameel Williams
Mr Mussari, is probably the best attorney in Erie county. Very understanding to the inconsistencies of the justice system. He will take all the time necessary to explain the law and will work extremely hard to win the case. He is fearless in the court room and is not a attorney who is trying to make a quick dollar. That right there speaks volumes.
Danielle Jones
Danielle Jones
The best Attorney I have ever encountered!! Very caring about your case and will fight his hardest to defend you and your rights!! He is very knowledgeable and reliable! The only time he doesn’t/cant answer is when he is in court, but gets right back to you asap! I would most definitely recommend choosing Mr.Mussari to defend anyone!
Great lawyer , u dnt deal with no secretary the number is a direct line to him , he always answers an if he cnt he will text a let u know . Always call u with any information he has on ur situation ,straight an up front with u , I would highly recommend him , he will go to hard for u
erica loster
erica loster
Louis Mussari was informative and knowledgeable of the court system and the court process told us trust the process and him and we did and it turned out great I would recommend them for all criminal cases
Marjorie Baker
Marjorie Baker
Attorney Mussari is a kind, caring, attentive and knowledgeable lawyer. He always answered our phone calls answering all questions we had. With his knowledge of the law and attention to all details he achieved the best possible outcome. You were kind and informative with the client who is grateful and appreciative of your treatment of and interaction with them. I cried tears of joy at hearing the verdict. I couldn’t have hoped for a better outcome. Thank you so very much. I would highly recommend you to anyone needing your services.
Angelica michell
Angelica michell
Mr. Mussari is not only an attorney he is a kind caring person that will drop what he is doing to answer a call and your questions. Mr. Mussari will not stop his fight until you are satisfied and will get you the best results there is and even better.
Ya Moms
Ya Moms
Best lawyer ever actually goes the extra length For you even if it’s 1-100 cases he has. Got my case dismissed because he actually went thought every Sanrio possible.I promise you want him representing you at all cost. Hell never give up on you he’ll keep fighting until he can’t anymore
Mr. Mussari guided us, took care of our case with rigor, assertiveness, dedication and not to mention the special “peace of mind” for having Mr. Mussari on every step of the way. At the end, a fantastic result. He always returned our calls almost immediately. He is clear, direct, does not cut corners, and extremely focused on the best results. I could not be more grateful; I am honored to recommend Mr. Mussari. All the best Mr. Mussari and God bless you for all you have done for our family.

Do You Know Your Rights?

Everyone likes to think they know their legal rights and that they will know what to do when the police come knocking. In reality, the criminal justice system is full of pitfalls that could harm your case. Without an experienced, vigilant attorney, you may be making crucial mistakes that put your freedom in jeopardy.

Louis Mussari is a former prosecutor who understands what is at stake and how to protect you. He is a professor at the University at Buffalo, where he instructs others in criminal defense strategies. He draws on his decade of prosecutorial knowledge to build defense strategies that anticipate the other side’s moves, and the legal community respects him for it.

Serious Matters Require Serious Experience

A client facing two Class D felonies for criminal possession of cocaine and intent to sell in Buffalo, NY, hired Louis Mussari based on stellar Google reviews. Labeled as a persistent offender and facing 20 years to life in prison, the client benefited from Mussari’s aggressive plea negotiation.

Protect Your Rights. Protect Your Future.

Buffalo Office – 42 Delaware Ave. Suite 770 Buffalo, New York 14202 | Phone: 716-430-2147