“I have had the pleasure of working with Trinity for the past 2 years in the area of Domestic Relations. I have found her to be very professional and well respected by her clients, which primarily consist of high profile, high-asset clients who obviously put their faith in her abilities as I do. She is joy to know and work with.”

Read Trinity's Success Stories





Trinity Hundredmark heads the domestic relations division for Andersen, Tate, & Carr, P.C., while also working within the criminal practice division. She is considered a leader in the southeast in both family and criminal law related matters, and can often be seen in the news media, offering her legal insight on cases in the National spotlight.

Trinity leaves no room for error in her criminal law practice, ensuring the best possible outcome for her clients. She has attained certifications in Georgia for both DUI Detection and Standardized Field Sobriety Testing, and is considered by her peers to be a true trial attorney and skilled litigator.

In addition to being an experienced litigator that will aggressively pursue justice, Trinity is often appointed to serve as a Guardian ad Litem by the Superior Court. Within this role, she advocates and ensures justice for children whose parents are facing divorce.

Trinity was recently appointed by the Supreme Court of Georgia to serve on the State Bar of Georgia’s Standing Committee for the Unauthorized Practice of Law. In this role, her job will be to aid in the investigation of individuals alleged to be engaging in the unlicensed practice of law.

Honors and Awards
  • Georgia Rising Star Super Lawyer, Law and Politics Magazine
  • Georgia Rising Star Super Lawyer, 2013-2016, Atlanta Magazine 
  • Martindale-Hubbell® AV Preeminent™ Rating
Bar Admissions
  • Georgia
  • University of Georgia School of Law, Athens, Georgia
    • J.D. (Cum Laude) – 2004
  • Stetson University
    • B.B.A. (Magna Cum Laude) – 2001
Professional Associations and Memberships
  • Georgia Association of Criminal Defense Lawyers
  • State Bar of Georgia
  • Atlanta Bar Association
  • Gwinnett County Bar Association
  • Gwinnett Championship Foundation Board of Directors
  • Atlanta Lawyers Club
  • Past Director, State Bar of Georgia YLD
  • Board Member, Executive Committee, Hudgens Center for Art & Learning
  • Past Member, Partnership Gwinnett Implementation Committee
  • Past Board Member, J.M. Tull-Gwinnett Family YMCA
  • Past Chair, hYPe, Gwinnett Chamber of Commerce, Young Professionals Division
  • Chair, Unauthorized Practice of Law District 9 Committee, State Bar of Georgia
  • Beta Gamma Sigma Business Honor Society
  • Omicron Delta Kappa Leadership Honor Society
  • Order of Omega Greek Leadership Honor Society
  • Delta Delta Delta national fraternity.

“I engaged Trinity's legal expertise on two separate occasions to provide assistance to two of my adult children. Trinity's caring and knowledgeable approach resulted in unique and successful outcomes in both cases. I was impressed by Trinity's compassion, her ability to listen carefully, and her determination to pursue a legal outcome customized to the needs of her clients. I highly recommend Trinity to anyone with family-related legal challenges.”

- Jeff H.

“Facing a politically motivated GBI investigation, 18 count indictment, and trial was one of the most stressful and difficult times in my life. I want to thank Pat & Trinity for their work ethic, attention to detail, legal argument and faith in me. Hearing the words not guilty gave me back my faith in the system.”

- Senator Don Balfour

"We will be forever grateful for all that Pat and Trinity have done for our boys. We are enthusiastic with the outcome and wish the ATC team very best in all that life offers."

- Catherine O.*

"I didn’t realize how stressed I would be waiting for the outcome of our hearing. Finally, I was able to rest peacefully. I feel free. Thank you for your kindness, supportive encouragement and consistency throughout this entire experience. I will never forget it!"

- Teresa S.*

"Even with cases handled outside of the courtroom, Patrick McDonough and Trinity Hundredmark build their cases as if each was going to trial. With their dedication, perseverance and expertise, I would confidently recommend the ATC legal team to anyone facing criminal charges."

- Gwinnett County Sheriff's Department

"I have had the pleasure of working with Trinity for the past 2 years in the area of Domestic Relations. I have found her to be very professional and well respected by her clients, which primarily consist of high profile, high-asset clients who obviously put their faith in her abilities as I do. She is a joy to know and work with"

- Tom H., Private Investigator

“Thank you so much for all that you did for me with my citation. I honestly cannot thank you enough. After seeing what could’ve happened, I don't plan on getting a ticket ever again!”

- Ashley H.*

“My family wants to thank Pat & Trinity so much for all you have done to insure an outcome that resulted in my husband receiving a minimum sentence yesterday. Everyone we have met at ATC over the past two years has been friendly and courteous.”

- Alexandra B.*

“Thank you so much! I heard my daughter laugh for the first time in ages!”

- Judy B.*

“Thank you for all the time and help you put into my case’s success! Your work speaks for itself and you are now my go-to attorney, should I ever need one in the future!”

- Philip R.*

“Thank you very much for all your hard work on my behalf. May God bless you and your firm for taking my case pro bono. I could have never had done this without your help.

Also, I wanted to thank you for your kindness to me, your supportive encouragement, and your consistency throughout this whole experience. I will never forget it.”

- A.

"xxxx and I just want to thank you both so much for all you have done to insure an outcome that resulted in xxxx receiving a minimum sentence yesterday. We pray God bless you, that you would receive His favor this day and all days, that you live in health and prosperity. Everyone we have met at ATC over the past two years has been friendly and courteous."

- G.D.

"I would really like to thank you for taking my case & working on my case. I couldn’t have asked for better attorneys! I would not have wanted different attorneys. Thank you. My gratitude is more than I can say. I appreciate the energy and the time that you put into this. I wouldn’t change anything. I feel you are pretty much my family. You’re not just my attorneys & I won’t forget about you when this is over. No, I won’t. Why?! Because you helped me. You worked for me. You did more than you had to do. The first time I met you in those 45 minutes (give or take) you told me more than the attorney I had, previously, for 3 years. So, thank you."

- M.

“I was facing prison for something I did not do. However, the political climate was stacked up against me and a trial was risky. Pat & Trinity were able to get me a no contest plea & fine and it was over.”

- M.

”I worked with Pat & Trinity on a personal family matter. Although my type of case is never easy and highly sensitive, they assured me from the very beginning that we would get through this and meet the end result that I needed. The team was very responsive, thorough and professional. I have since recommended Trinity and her firm to numerous friends and colleagues. I have great trust in her abilities.”

- K.

“I went through a very traumatic domestic situation- resulting in a highly complicated case involving my children. After meeting with Pat & Trinity, I was immediately put at ease. They knew how to speak with my children and made them feel comfortable, which was important to me. Pat & Trinity are extremely experienced and represented me skillfully in the courtroom. Due to the unique circumstances of my case I have had the need to hire Pat & Trinity on two separate occasions, having great success both times and have been extremely satisfied both times. Due their dedication to their clients and their needs, it’s nice to know they are just a phone call away.”

- J.

“Pat & Trinity represented my son recently, and they were nothing short of well-prepared knowledgeable, while at the same time receptive and compassionate to our. We were provided excellent representation, as Pat and Trinity negotiated the best possible plea and probation deal given our circumstances. We felt that they truly cared about us as clients and worked hard to arrive at the best outcome. I would recommend them without reservation.”

- K.

“After my daughter found herself in some legal trouble alongside her friends, we hired the legal counsel of Pat & Trinity to represent the entire group. They were extremely prepared and professional - but the most critical and beneficial aspect was how they explained everything to the girls in simple language that they could easily understand. They are extremely nice people and I highly recommend!”

- B.

“Our son was being charged with violation which could have ultimately landed him in jail for a very long time. After utilizing the legal help of Pat & Trinity, our son was releases very quickly, the case was dismissed, and his record was expunged. We would not have been able to do this without their tenacity and experience. “

- C.

“After being pulled over for speeding, I was arrested for 2 misdemeanors and found myself facing three charges in court. Unoptimistic about my fate, I hired Pat & Trinity as a last hope. The team was very polite, informative, and respectful- always no more than an email/phone call away. Their consultation was very reassuring; after going to court, I was able to enter the Pre-Trial Diversion program even after completing it in my previous case. I already completed most of the requirements needed for probation, and due to Pat & Trinity’s insight and recommendations all that was required was 12 months of probation and a few seminars. I highly recommend using their unparalleled expertise!”

- S.

“Pat & Trinity did an amazing job of very quickly getting in touch with the right people in the prosecutor's office to work out the best possible regarding my citation. Thanks to their help, I was able to avoid getting any points on my driving record, or having to report it to my insurance company.”

- S.E.

“After finding myself in a very intimidating situation, I reached out to Pat & Trinity for legal help. Due to their relentless attention to detail, every document and record used to support my case was dismissed- an outcome I initially did not think was possible! I am so thankful I chose them to oversee my case. “

- C.

“I was facing two felony charges as well as three separate charges when I decided to hire Pat & Trinity to represent me in court. During my trial, I was arrested for a separate charge. Despite the complicated situation, Pat & Trinity were able to get every charge dropped, with the exception of one felony, which was lowered to a misdemeanor. After serving 12 months probation, all of my charges will be officially dropped! I am so fortunate to have found a great team who made this process go so smoothly. “

- C.

“Earlier this year I was charged with a DUI. The situation was stressful as anyone could imagine. A serious charge on my record, jail time, and license suspension was at stake. With Mr. McDonough and his teams experience and expertise throughout the process, I was able to avoid it all. My charge was reduced; I kept my license, did not receive points on my license, and did not serve additional jail time. With his hard work and knowledge, he was able to negotiate with the prosecutor with the odds stacked against me. I would highly recommend him if you are in need of legal assistance.”

- A.

The odds were stacked against my son after refusing a breathalyzer test, which normally results in an automatic one-year license suspension. He also failed all other tests administered to him at the time of his arrest. Despite this, Pat & Trinity were able to dissect the tests and use their expertise to lower the charges to reckless driving with no points, no license suspension, and no probation. He only had to do community service, take a class and pay fines. Needless to say, we were very pleased with the outcome and would use their services again without hesitation.

- G.

“Pat & Trinity are excellent attorneys who does what it takes to get the job done. Their combined diligence and hard work provided the best outcome for my situation. I especially appreciate their candor throughout the process. Updates and options were more frequently than expected. I can honestly say my relationship with Pat & Trinity has impacted my family in a very positive manner, both financially and in other ways.”

- M.

“Pat & Trinity are experts in criminal law with outstanding relationships within the criminal justice community in Gwinnett County and the Atlanta area in general.

They have helped my family and friends on many occasions and I have referred people to him numerous times. Pat’s experience as a District Attorney and Prosecutor before becoming a Criminal Defense Attorney is instrumental in helping his clients.”

- C.D.

“My husband and I had the opportunity to meet Pat & Trinity several years ago when our youngest son made a bad decision that could have had life long ramifications. Pat & Trinity worked with the case and all who were involved to resolve the matter. They are an amazing team to work and although though I don't wish to have to use the team ever again, I would recommend Pat & Trinity to anyone who may find themselves in a difficult situation. They are the best at what they do, and I will always be grateful for their amazing knowledge and capabilities”

- B.F.