October 15, 2026
Summer Street Advisors, LLC (SSA), a national commercial real estate advisory firm with more than $10 billion in completed transactions and due diligence assignments, today announced the promotion of Courtney Mullen to Vice President of Operations.
The promotion recognizes Mullen’s role in SSA’s growth, helping scale its operations and national reach. During her tenure, SSA has achieved:
As Vice President of Operations, Mullen will oversee strategic operations, business development, project management, marketing, human resources and client relations. She leads a nationwide network of more than 1,000 professionals across four departments. Her initiatives have improved the firm’s operational margin efficiency by 170.2%, strengthening SSA’s ability to deliver complex advisory services at scale.
“Courtney has been central to how SSA has grown, from the systems that support our teams to the relationships behind our client work. Her promotion reflects the impact she’s already had and the role she’ll play in shaping where the firm goes next,” said Jack Mullen, Founder and Managing Director of Summer Street Advisors.
Courtney Mullen will work closely with SSA’s executive leadership on the firm’s long-term strategy, aligning its priorities with new growth opportunities and changing client needs.
“I’m grateful for the great people I work with and the trust leadership has placed in me,” she said, “and I’m excited to keep building on that foundation as we expand our national presence.”
Outside commercial real estate, Mullen previously served as President of KITO, a nonprofit that supports vocational education in Tanzania.
About Summer Street Advisors, LLC
Summer Street Advisors LLC is a commercial real estate advisory services firm founded by Jack Mullen, an alumnus of GE Capital Real Estate.
SSA offers a full range of advisory services across Transaction Management, Capital Markets, and Asset Management, providing highly experienced strategic advisory services to sponsors/developers, financing institutions, debt and equity fund investment managers, insurance companies, pension funds, and family offices. SSA’s senior team has hands-on experience across all major U.S markets and asset classes for structured equity and debt investments, including distressed assets and CMBS securities.
About Jack Mullen of Summer Street Advisors:
As Founder & Managing Director of Summer Street Advisors, Jack Mullen leverages decades of experience in valuation, underwriting, and risk management to lead multi-million and multi-billion dollar CRE transactions.
Previously with GE Capital and large institutional banks, he has shaped investment strategies for some of the industry’s largest deals. A recognized leader, his insights are featured in GlobeSt.com and CREFC Finance World, and he is a sought-after speaker at industry conferences and top universities.
For strategic advice on your portfolio or transaction, contact: