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Who We Are

Southsource Advisors is proud to be a real estate services platform that connects passionate advisors with individual opportunities that spark innovation, drive growth, and pave the way for long term success. Together the team brings over 15 years of combined experience in both landlord and tenant representation.


Transparency and authenticity is what sets us apart. Who you see is who you get. Our Advisors are committed to your goals. The experts below will be working with you every step of the way.

Team Photo

Lawrence Gellerstedt IV


Lawrence, known by most as “LG,” was born and raised in Atlanta and is a graduate of The University of North Carolina at Chapel Hill. LG has a proven track record of working strategically with clients to make informed real estate decisions that prioritize their specific KPI’s. With more than 10 years of experience serving landlords and tenants in the commercial real estate space, LG has worked across some of the largest platforms in the world including Cushman & Wakefield and WeWork. LG oversees all of Southsource’s brokerage activities and leads the company’s tech investment strategy. With a passion for building authentic and lasting relationships, LG founded Southsource in 2020 to provide a more personalized and flexible solution for both tenants and landlords in the Atlanta market.


LG resides in Kirkwood with his wife Jessie, son Calvin, and two dogs Trout and Dove. As a fourth generation Atlantan, LG is passionate about giving back to the community and actively supports the Leukemia & Lymphoma Society, Southern Poverty Law Center and the Human Rights Campaign. When he’s not on the golf course, LG enjoys watching the Braves and coaching his son’s baseball team. 

John Neal Scott

Vice President

John Neal came to suburban Atlanta from Richmond, VA with his family at 9 months old, and he has been all-in on Atlanta ever since.  A graduate of The University of Georgia, John Neal has 14 years of commercial real estate experience, with time spent at both large institutions and a local general contractor.  At Southsource, John Neal will have a heavy focus on the Landlord Representation practice, as well as a leadership role across the entire platform including the company’s financial and operational strategy.  He will leverage his experiences at JP Morgan and MetLife Real Estate where he served in a number of capacities, including Acquisitions, Asset Management, and Portfolio Management.  Prior to Southsource, John Neal was working at Hollandsworth Construction where he focused on business strategy and financial operations.    John Neal also has an MBA from Goizueta Business School at Emory University. 


John Neal lives in Roswell, GA with his wife Hailey and their three children.  He is an active member of North Point Community Church, and enjoys spending time outdoors with his family, playing golf, and running.  He is a long-suffering Atlanta (and UGA) sports fan.  

Phil Costabile

Vice President, Principal

Similar to many Atlantans, Phil is a transplant to our city, but has called Georgia home since 2014. A graduate of Auburn University, Phil is originally from the great state of Pennsylvania and has over 7 years of experience in commercial real estate, all of which was spent working at JLL. With expertise in tenant rep, portfolio management, real estate investments and lease dispositions, Phil places an emphasis on service, relationships and creativity for all his clients.

Phil and his amazing wife, Baxley, have one son, Philip (2 ½), with another son on the way, in addition to their 9 year old black lab, Gus. Service is key in the Costabile family, and Phil’s past leadership roles working with Special Olympics and Bright Futures Atlanta are indicators of that. When not chasing a toddler while at home, Phil enjoys golf, running and watching any sporting event involving a pro sports team from Philadelphia.

Paul Tortora Jr.

Senior Director

Born and raised in the Northeast, Paul Tortora is a graduate of Saint Michael’s College and launched his commercial real estate career in the most complex market in the world, New York City.  Paul has extensive experience working with tenacious occupiers, most recently at WeWork, where he helped execute one of the largest expansion strategies in history. Paul specializes in landlord representation and is passionate about creating customized, innovative strategies that drive long-term growth for his clients.


Though he once lived in Australia and most recently Manhattan, Paul is thrilled to be a new Atlanta resident and resides in Buckhead with his fiancé Carrie. Not quite ready to adopt Atlanta sports teams, Paul remains a devout New York sports fan and can be found watching the Giants, Rangers and Yankees in his spare time.

Bryce Metcalf


Born and raised in Atlanta, Bryce comes from a long line of real estate professionals. His diverse professional background focuses on asset management, acquisition, and tenant representation, with experience from Piedmont Office REIT, Colliers, and WeWork. Bryce brings a unique perspective to Southsource through his expertise in scale and advisement of high-growth technology tenants.

After attending The University of Georgia, Bryce made his way back to Atlanta and now lives in Inman Park. As a life-long learner, he fills his free time with astronomy, physics, and chemistry knowledge. When he’s not learning new things, he enjoys the outdoors, gardening, and freestyle rap music.

Alec Clifford


After spending the majority of his young life in Virginia Beach, Alec ventured further South to earn a degree from the Real Estate Program at the University of Georgia.  Through his internship experiences at Federal Capital Partners and JLL, Alec has come to develop a profound knowledge of commercial real estate, and especially the Atlanta office sector.  He's excited to contribute to the growth of the tenant rep business at Southsource.


Alec is fluent in Spanish after perfecting the language during a 10-month, five country tour of Latin-America during a gap year before moving to Georgia. Alec is active in the community, serving on the Young Board of Professionals at “Soccer in the Streets”.  In his spare time, he enjoys watching college football and the premier league, as well as hanging by the lake and the beach with friends and family.