Brannon was born and raised in Lawrenceville, Georgia. He attended Georgia State, where he graduated in 2002 with a B.S. in Public Administration. Brannon then attended Oklahoma City University, School of Law. He received his Juris Doctor in 2005.
Brannon is currently a member of the State Bar of Georgia and is admitted to the Georgia Court of Appeals, the Supreme Court of Georgia, and the United States District Court Northern District of Georgia.
When not at work, Brannon likes to keep active. He enjoys music festivals, restaurants, paddle boarding, and hiking. Brannon loves to cook, read, and collecting record albums.