Free Consultation
$0 first 30 minutes
• Extensive Trial Experience
• Member of the Arizona State Bar
• Member of the Maricopa County Bar Association
• Member of the Maricopa County Bar, Family Law Section
A believer that hard work and determination can lead to amazing results. Greg has used this approach in all aspects of his career.
Greg grew up in Brandon, Mississippi, and graduated from Belhaven University with a Bachelor’s Degree in Accounting. After graduation, Greg worked for a regional moving company as its office manager. However, Greg found his calling for the law when he made a career change, taking a position as a paralegal for a Jackson, Mississippi-based tax law firm. Greg used the skills he learned as a paralegal, working closely with clients, to further his legal career. He then finished his legal education at the University of North Dakota School of Law. During law school, Greg was a member of Law Review and represented his law school at a national appellate moot court competition. He also clerked for a Maricopa County Superior Court Judge in law school, where he got hands-on experience inside the courtroom.
After earning his Juris Doctorate, Greg began his career working in employment law, assisting people through tumultuous times. While working in employment law, Greg honed his skills as a negotiator, helping numerous clients obtain severance packages after unexpectedly having their employment terminated Greg then went on to work in commercial contract law, where he found a true love for the courtroom. Greg spent numerous hours in the courtroom, advocating for his clients. In this capacity, Greg had the opportunity to see cases from both sides’ points of view, and he wanted to spend his life helping people through their difficult situations.
Greg uses the negotiation skills he gained in employment law and his trial skills from commercial contract law to advocate for his clients daily through one of the most difficult times of their lives.
When Greg is not working with clients to help them navigate the family law process, he enjoys spending time with his family. They enjoy traveling together and exploring Arizona. When he can, Greg can be found teeing it up on one of the valley’s numerous golf courses.
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$0 first 30 minutes
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Chat withState: Arizona
Acquired: 2020
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40 N Central Ave Ste 2300, Phoenix, AZ, 85004
Showing 1 - 5 of 10 client reviews from Avvo
Posted by anonymous | August 16, 2025 | Hired Attorney
Great experience so far. Gregory follows up promptly, addresses all issues at hand, and is an impressive attorney in the court room. We have been able to accomplish all of our desired tasks. I would highly recommend consulting Gregory and or his paralegal Cierra for any family law issues. Thank you....
Posted by anonymous | September 26, 2024 | Hired Attorney
I cannot recommend Greg and Cierra highly enough for their exceptional support during my custody case. From our first consultation, I felt understood and supported. They took the time to listen to my concerns and clearly explained the legal process, which helped alleviate much of my anxiety. Greg’...
Posted by Donna Crocker | August 10, 2024 | Hired Attorney
Grandparents can get rights and I did. I thank Greg Sinning and staff for all your help.
Posted by Janelle | May 21, 2024 | Hired Attorney
I would highly recommend Greg Sinning and Cierra for any family law matter. They made the process simple and as stress free as possible. Greg is an extremely knowledgeable attorney and truly great to work with! Thank you both for your hard work.
Posted by Nicole M | August 23, 2023 | Hired Attorney
Gregory Sinning and the amazing Paralegal team supported me during a tough child custody case. They are responsive and worked hard to protect my child and we recieved a postive outcome. I knew what was happening every step of the way and all my questions were answered. No one wants to fight for custo...
"Greg is a great advocate for his clients as proven by his results and his reputation within the legal community. I highly recommend Greg as an attorney and litigator."
"A highly dedicated and sharp-minded attorney, Greg consistently provides exceptional legal analysis and strategic counsel for our team."
"Greg is a formidable advocate who represents clients with skill and professionalism. I highly endorse him!"
"Greg is a zealous advocate for his clients producing outstanding results. I highly endorse this lawyer."
"I endorse this lawyer. Greg gives careful attention and consideration to every case and client he represents. He is well-prepared, zealous, and attentive; every client could benefit from Greg's representation."
Family lawyer
Family lawyer
Family lawyer
Family lawyer
2025
Rising Star, Super Lawyers
2022 - Present
Family Law Attorney, Cantor Law Group
2020 - 2022
Attorney, Gurstel Law Firm, PC
2020 - 2020
Attorney, Law Office of Joshua Black, PLC
2019 - 2020
Law Clerk, Law Office of Joshua Black, PLC
2019
JD
2010
BS - Bachelor of Science
English