Marcus Calloway received his Bachelor of Arts in 1972 from Troy State University in Troy, Alabama.  He earned his Juris Doctor from Woodrow Wilson College of Law in 1976 and was admitted to the State Bar of Georgia shortly thereafter.  In 1977, Marcus opened S. Marcus Calloway, P.C. In 1989, Marcus entered partnership with Ramsay and Calloway Title Services Inc.; he formed Calloway Title and Escrow, LLC in 1996.  Since his admission to the State Bar of Georgia in 1976, Marcus has focused on real estate law with an emphasis on examining commercial title and crafting title insurance commitments, certificates, and policies.

Marcus was a member of the Georgia Bar Association, the Atlanta Bar Association, and the Southeast Land Title Association. He often presented at seminars on real estate title matters.  In 2013, Marcus received The George A. Pindar Award from the Real Property Law Section of the State Bar of Georgia for his contributions and accomplishments in the field of real property law. Marcus was named Title Person of the Year by the Southeast Land Title Association in 2017.

Marcus believed in supporting organizations that have contributed to his success in life including the Prattville High School wrestling team and the Troy State University athletics department.  He was a founding member of Angels on Earth, an organization that donates its proceeds to the Cancer Wellness Center at Piedmont Hospital Atlanta, and he often contributed to The Giving Kitchen, Men Stopping Violence, and the YMCA.  He also supported the Captain Planet Foundation and the Chattahoochee Riverkeepers.

Marcus was an avid rugby fan and brought professional rugby to Atlanta when he was awarded an expansion franchise of Major League Rugby in 2019.  He built the entire organization upon a set of core values: People Development, Accountability, Creating Positive Change, and Execution. The players, staff, fans and the community all committed to living life at PACE. Rugby ATL was crowned regular and postseason Eastern Conference Champions in 2021. In 2022, Major League Rugby introduced the S. Marcus Calloway Community Impact Award, which is given to the player who has made a positive impact in their community while exuding the values of the sport of rugby.

Marcus also served as the Secretary of Atlanta Renegades Forever, Inc., a non-profit organization dedicated to reinvigorating rugby in the Atlanta market; he enjoyed cheering on “The Renegades”.

Marcus is survived by his wife, Clea Rachel Calloway, children Amanda Faye Calloway-Mercer (Kevin), Sidney Amelia Calloway-Roberts (Brett), Alyssa Ruth Calloway, brother, George Clifford Calloway (Diane) and his niece Capiz Calloway (Forrest Hasbrook). His generous heart extended beyond the family bounds to many others who call him mentor and friend.

Marcus attributed his successes in life to living by his personal motto:

Respect all. Fear none. Expect victory.