Our Firm
about Slack-Méndez law firm

Charles Slack-Méndez
founding attorney of slack-Méndez law firm
Charles Slack-Méndez, the founding member of Slack-Méndez Law Firm, was born in Nogales, Arizona. Fluent in Spanish and English, Charles has been practicing law since 1993, specializing in personal injury law. As a dedicated litigator, he is a proud member of the Million Dollar Advocates Forum and the Multi-Million Dollar Advocates Forum—prestigious groups for trial lawyers who have secured million and multi-million dollar verdicts and settlements. Less than 1% of U.S. attorneys are members of these forums. Charles has also been recognized for securing a jury verdict that ranked among the Top Ten in Arizona.
Outside of his legal career, Charles enjoys training dogs and playing the saxophone, which help him unwind and relieve stress.
Breann Slack
partner attorney at slack-Méndez law firm
Breann, an Arizona native, is a dedicated Partner at Slack-Méndez Law Firm who has extensive pre-litigation and litigation experience in the fields of personal injury and civil rights.
Upon receiving her Juris Doctorate degree from Sandra Day O’Connor College of Law, she embarked on her legal career alongside her father, Charles Slack-Méndez. She is admitted to practice law in the State of Arizona and before the United States District Court of Arizona. Her litigation experience includes successfully handling a 14-day medical malpractice jury trial.
Over the years, Breann has handled a wide range of cases, recovering millions of dollars for her clients. Breann brings a unique perspective, blending years of experience with fresh, innovative approaches that keep the firm at the forefront of legal practice.
Breann loves traveling, singing karaoke (even if she’s a little off-key), and staying active. In her downtime, Breann enjoys spending time with her husband Spencer and her fur babies, Maui and Milo.


the team behind slack-Méndez law firm
We understand that when it comes to hiring a personal injury lawyer in arizona, the choice you make is an important one.
The team at Slack-Méndez Law Firm is dedicated to providing compassionate, results-driven legal representation. With years of experience in personal injury and various other practice areas, our team works tirelessly to secure justice and compensation for our clients. We take pride in offering personalized service and always put our clients’ needs first, ensuring they receive the care and attention they deserve throughout the legal process.
Lisa Slack
legal assistant and office manager at slack-Méndez law firm
Lisa was raised in Nogales, Arizona, and graduated from Nogales High School in just three years. She went on to attend Arizona State University, earning a Bachelor’s Degree in Elementary Education. With over 20 years of experience as a legal assistant and office manager, Lisa has been instrumental to the success of Slack-Méndez Law Firm. She plays a key role in training new employees, ensuring cases are regularly reviewed, and keeping clients updated. Lisa also manages one of the most important tasks in the firm—writing checks for our deserving clients. She believes in providing exceptional service to every client, no matter the size of their case, to ensure they feel valued and appreciated.
Outside of work, Lisa enjoys spending time with her three children, her dogs, and traveling.




Sonia Reyna
litigation paralegal at slack-Méndez law firm
Sonia was raised in Eloy, Arizona, and graduated from Santa Cruz Valley Union High School. With over 20 years of experience in the legal field, Sonia specializes in personal injury law and Indian law. In 2007, she was featured in the July/August edition of Legal Assistant Today magazine for her expertise and work in Indian law.


Danitza Lorta
Legal Receptionist/Assistant at slack-Méndez law firm
Danitza was born and raised in Nogales, Arizona. Her passion for justice and commitment to helping others led her to pursue higher education at Arizona State University, where she graduated in the Spring of 2024 with a Bachelor’s Degree in Criminal Justice and Criminology, earning cum laude honors. Danitza is bilingual, fluent in both English and Spanish. Danitza’s warm and professional demeanor helps create a welcoming environment at Slack Mèndez Law Firm, as she is often the first point of contact for clients. Her exceptional customer service skills sets her apart, as she always makes clients feel heard, respected, and cared for.
Rated 5.0 Stars for Exceptional Service and Results
a personal injury law firm that truly cares.
Georgina K.
Charlie, Breann, and Sonia represented my family through a very difficult and tremendous loss that occurred in my family. Patiently they guided my family through the legal process and listened to any concerns my family had. I truly appreciate the due diligence that it took for our family to have closure. I recommend the Slack-Mendez Law Firm for any legal concerns as they will navigate you through the legal process.
Daniella S.
They don’t make you feel like just another client. They got to know me and treated my case as if it were their own. They made me feel secure in every step of the way. They were on it with everything. They didn’t delay my case or be lazy with it. They absolutely went above and beyond to get me what I deserved. Even when I was okay with the number they made it clear my worth was more and they got me that.
Jessie D.
As a client of more than 20 years, I cannot say enough of how diligent and proactive my attorney has been in the different matters he has represented me throughout these years. You will find that he has your best interest in mind, therefore, he will zero-in on finding the best solution available when representing you.
Bianca G.
It was such a pleasure working with Breann. She communicated daily and made sure we were always on the same page. She is very dependable and I could count on her to answer all of my questions. I felt secure in her guidance and advice while reaching an agreement. She definitely made the process much more manageable.
Grisel V.
Charles Slack is not only an exceptional attorney but a man of great integrity. Very knowledgeable, hardworking and professional. Very honest and trustworthy as well as an excellent listener and communicator who pays attention to detail. I would highly recommend him and his excellent team to my colleagues, friends and family as they genuinely care for their clients and are always willing to help!
no fees until we win, guaranteed.
personal injury practice areas
The attorneys at Slack-Méndez Law Firm are proud to serve Arizona with decades of experience, helping clients navigate a wide range of legal matters, including:
Our Legacy of Justice, Our Commitment to You
proudly recognized as a top Personal injury lawyer in Arizona
At Slack-Méndez Law Firm, we carry a legacy of dedication, integrity, and relentless pursuit of justice. Founded by Charles Slack-Méndez, our firm has been a trusted name in the legal community since its inception. Over the years, we’ve built a reputation for delivering results and advocating for the rights of the injured, empowering families throughout Arizona.
While we’ve grown and adapted with the times, our core values remain unchanged—always putting our clients first, fighting with unwavering commitment, and ensuring justice is served. We take pride in being a family-run firm, offering a personalized, compassionate approach to every case. Our Spanish-speaking team ensures that language is never a barrier for our diverse community.
As we look ahead, we’re excited about the future and the opportunity to continue making a meaningful impact. The strength of our past propels us into the future, and we’re here to make sure you have the legal support you need to move forward. At Slack-Méndez Law Firm, we’re proud of what we’ve built and committed to delivering exceptional service for years to come.