CCIM Institute Announces 2022 Executive Management Team

Posted on Oct. 22, 2021

Leslie G. Callahan, III, CCIM, to lead the organization in 2022.

CCIM Institute, one of the largest commercial real estate networks in the world with chapters in more than 30 global markets, announced its 2022 board of directors at the organization's Annual Governance Meeting, held Oct. 7-11 in Pittsburgh. CCIM Institute confers the Certified Commercial Investment Member designation, commercial real estate's global standard for professional achievement.

Leslie G. Callahan, III, CCIM, president of First Colony Financial Corporation in Atlanta, will serve as 2021 president of CCIM Institute. After earning his CCIM designation in 1982, he worked extensively with the CCIM Georgia Chapter, serving as its president and subsequently on a variety of institute committees, including as the treasurer and chairman of the Finance Committee. Currently, Callahan serves on the institute’s board of directors and Executive Committee.

President-Elect David Schnitzer, CCIM, partner at ASCEND Commercial Real Estate in Dallas, has been a part of volunteer leadership at CCIM Institute for over a decade. In addition to serving on multiple committees during his tenure, he was president of the North Texas CCIM Chapter in 2012 and 2013. He served as CCIM Institute presidential liaison in 2017, 2018, and 2020 and president of CCIM Technologies in 2015. Schnitzer has spent the last 19 years in commercial brokerage specializing in retail real estate, land, and investment properties. He is a board member for the North Texas Commercial Association of REALTORS® and earned his CCIM designation in 2008.

2022 CCIM Institute First Vice President, D’Etta Casto-DeLeon, CCIM, is a senior portfolio manager at CBRE Loan Services in Houston. Previously, she served on the Houston/Gulf Coast CCIM Chapter board of directors, including as its 2012 president, and as Region 4 vice president. At the institute level, Casto-DeLeon was a member of the board of directors from 2015-2020 and a 2018 presidential liaison. She also served on multiple committees — including Executive, Finance, Members Services, Strategic Planning, and Marketing — and subcommittees — including Chapter Activities, Regional Activities, and Networking. She has more than 23 years of commercial real estate loan servicing and mortgage banking experience, including managing various investment portfolios and asset management responsibilities, primarily for life insurance companies. Casto-DeLeon earned her CCIM designation in 2007. 

2022 CCIM Institute Treasurer, Charlie Mack, CCIM, is president/broker of Mack Realty in Las Vegas. Mack has been an active volunteer leader with CCIM Institute since he earned his designation in 1990. Over the past three decades, Mack has served on virtually every committee at the global level, chairing many of them, as well as numerous task forces and work groups. In addition, he has served at the chapter level as president of the Southern Nevada CCIM Chapter in 1991 and 1996. Mack also serves his community and the commercial real estate industry. He is past president of the Las Vegas Southwest Rotary Club, has served on the Clark County Comprehensive Plan Steering Committee, and was a member of the Nevada Real Estate Commission for six years, serving as its president from 2004 through 2005.

2022 CCIM Institute Treasurer-Elect, Steve Rich, CCIM, is senior director of retail services with Colliers International in Charlotte, N.C. Previously, he served on the North Carolina CCIM Chapter board of directors, including as its 2012 president, and as Region 9 vice president. At the institute level, he has been a member of the board of directors since 2014 and has served on the following: Finance Committee, Governance Committee, Regional Activities Subcommittee, and Networking Subcommittee. Licensed in multiple states, he has more than 25 years of commercial real estate experience in retail, land, and investment properties. Rich earned his CCIM designation in 2006.  

CCIM Institute is a global community of 13,000 members and more than 50 chapters in 30 countries that educates and connects the world’s leading experts in investment strategy, financial analysis, and market analysis. 


About CCIM Institute

CCIM Institute created the language of global real estate investment. Our courses and worldwide community deploy commercial real estate investment methodologies and tools that speed the pathway between opportunity, a go/no-go decision, and success for an asset, taught by instructors who are themselves industry leaders. Today, the organization, through its 50-plus chapters, continues to innovate best practices and elevate the commercial real estate professional through its core designation program to earn the CCIM pin — real estate’s most coveted credential — and its topical education courses offered through the Ward Center for Real Estate Studies. In addition, membership in CCIM includes the industry’s best technology and operational platform, allowing entrepreneurial and mid-sized businesses to compete with the largest multinational providers. Today, almost 70 percent of designees hold the title of owner, partner, principal, or president, representing an exclusive worldwide referral network of approximately 13,000 members in 30 countries. Ultimately, CCIM represents a larger vision of the commercial real estate provider, leveraging investment analysis, opinions of value, and underwriting to become a leader in sourcing capital, building a cash-flow vehicle, and ultimately creating value. Information at

Larry Guthrie | Director of Communications | (312) 321-4535


Larry Guthrie

Larry Guthrie is director of communications for CCIM Institute.