X Team Board of Directors

X Team International has a nine-member Board of Directors drawn from across 35 North American partner offices.

Board members are responsible for managing general business decisions, long-term planning goals of the organization, and assisting the president with membership and financial processes, while maintaining the best-of-class capabilities across each service offering. All board members serve on a voluntary basis and are elected through majority partnership votes.




With more than 30 years of experience, his sphere of work has endured multiple growth cycles and several severe declines. Dave has transacted more than $3 billion of retail transactions and has been the mainstay for leading negotiation techniques to provide strategy for the corporate real estate groups at nationally-recognized retailers.

Beyond his unique combination of corporate experience as a Senior Vice President at CBRE and his entrepreneurial experience as a Managing Principal at Staubach Retail for the western states, Dave has been nationally recognized for his award-winning innovations in performance-based teaming and the application of technology to manage transactions. He was recognized on the cover of Shopping Centers Today Magazine for his commitment to mentoring and growing younger leaders in the industry. He is frequently asked to provide insightful commentary of his knowledge to dynamic startups and seasoned industry titans alike.



Bryan Cornelius is a principal at Venture Commercial, specializing in tenant representation and new development consulting. Bryan joined Venture Commercial in 2003 and brings over 26 years of real estate experience in brokerage, asset management, site selection, strategic market planning and commercial real estate appraisal to Venture. He became a partner at Venture in 2005. Bryan’s focus is tenant representation, specializing in the implementation of retailers’ market strategies for expansion in DFW and nationally for retail clients including Starbucks, rue21, Payless ShoeSource, GNC, FootLocker, Sola Salon Studios and Sprouts.

Prior to joining Venture Commercial, Bryan spent 10 years in corporate real estate with Radio Shack, Payless ShoeSource and FedEx Kinko’s. His experience also includes commercial real estate appraisal of a wide variety of income-producing properties including office buildings, retail centers, multi-family, industrial warehouses, residential subdivisions and vacant land.

Bryan is known for his strategic market planning process, which he learned on the corporate side of the business. Bryan’s core strength is seeing the big picture and planning a client’s experience comprehensively for the entire market, rather than looking at an isolated store one location at a time. He understands the client’s needs and tailors a plan specific to the retailer and the market. Bryan has been an integral part in putting together strategic market plans and rollouts for many clients including Starbucks, GNC, Sola Salon Studios and Sleep Experts.


Business Development

Utilizing 20 years of experience in the Houston retail market, Jason leads the Baker Katz tenant representation team, with a goal of providing clients with unmatched market knowledge and strategic consultation. He has worked with some of the most notable retail brands in the country, including Texas Children’s Hospital, Room & Board Home Furnishings, Northern Tool + Equipment, Chipotle, Zoës Kitchen, Ashley’s Furniture, Bloomin’ Brands and Party City.

In addition to his tenant representation work, Jason supports the firm’s development business, working to identify new opportunities.

A Houston native, Jason graduated from Texas A&M University in 1994 and joined Wulfe & Co., a retail real estate consulting and development firm based in Houston, in 1995. He is a past president of X Team International, an alliance of retail real estate advisors with expertise in more than 45 major markets throughout the U.S. and Canada, and holds the Certified Commercial Investment Institute designation.

Jason is actively involved in the Houston community, and frequently serves on local business and nonprofit boards. He currently sits on the The Seed Company Board and the Cadence Bank Advisory Board, and is a past board member of the Gulf Coast Chapter of CCIM and Boys & Girls Country. When he isn’t in the office, Jason enjoys spending time with his wife and four girls—Lillian, Lizzie, Caroline and Mia Grace. He is also passionate about serving his church, loves to travel and spend time outdoors, and is an avid reader.



As a Senior Associate of Welsh Companies, Sara Martin specializes in retail and land brokerage, representing tenants of various sizes in the retail sector. Sara’s strong communication skills and personal interaction enable her to acclimate to each client’s individual style and business requirements, while successfully guiding the transaction. She has worked with multiple tenants to roll out new concepts and grow existing ones in Minnesota; providing the market knowledge and research needed to garner long term success. Sara has completed over 2.1 million square feet in transactions, with a total consideration of over $156 million.

Since joining Welsh Companies 14 years ago, Sara has worked with landlords, tenants, developers, brokers and investors to provide consultation services including client representation, site selection and evaluation, build-to-suit, project management, asset valuation and portfolio services. Sara uses her experience and a relationship-based approach to accomplish each of her client’s specific needs while thriving to exceed all of their expectations.

The vast majority of Sara’s business comes through referrals from trusted friends and colleagues in the industry, as well as present and past clients. Sara’s colleagues know that she will go the extra mile for all of her clients.
The vast majority of Sara’s business comes through referrals from trusted friends and
colleagues in the industry, as well as present and past clients. Sara’s colleagues know that she
will go the extra mile for all of her clients.



Natalie Butler, Vice President of New & Neville Real Estate Services, has 12 years of experience as a broker specializing in retail real estate. As a retail broker, she specializes in tenant/landlord representation and retail sales. Some of Natalie’s tenant clients include Capital One 360, Jamba Juice, L Brands, Petco and Room and Board. She also currently works for many of Portland’s largest landlords such as Arrow Retail, CenterCal Properties, Gramor Development and Macerich.

Natalie earned her business degree from the University of Oregon. She is a member of the International Council of Shopping Centers and the Kappa Kappa Gamma Fraternity, and previously served on the committee chair for CREW Portland.




Tim Seiler joined John Cumbelich & Associates in 2009 and was named its first Partner in 2016. His primary retailer clients include Smart & Final Extra, El Pollo Loco, Dunkin’ Donuts, Fremont Bank, and The San Francisco Giants. Additionally, Mr. Seiler represents UBS on leasing for Downtown Pleasant Hill and Lewis Retail Centers for Sycamore Crossing in Hercules.

Over the course of his career, Tim has been directly involved in more than $1 billion in commercial real estate transactions, including investment and development projects and hundreds of leases.

Prior to joining John Cumbelich & Associates, Tim had a 20+ year career in the shopping center industry, including 10 years as a corporate Real Estate Director specializing in new store development for leading retailers including Kroger and Blockbuster and several years as Vice President, Land Acquisition for a national hotel chain. He also has extensive experience with both public and private shopping center investors and developers in the fields of development, leasing, acquisition and due diligence.



Dan Paxton, a Co-founder and Partner of Edge Real Estate Group, LLC, has over eighteen years of experience in commercial real estate focusing primarily on tenant representation and project leasing.  Dan’s clients include national and regional companies such as Donato’s, Piada Italian Street Food, Rusty Bucket, Sport Clips, Sally Beauty, Zoup and Petco.

Prior to founding Edge Real Estate Group, Dan was a Vice President with Midland Atlantic Properties.  While there, he was involved in ground-up commercial development and leasing of numerous grocery-anchored and neighborhood shopping centers.  In addition, he handled the rollout of several regional and national concepts in Cincinnati and surrounding markets, including Sonic, Ideal Fitness, Cold Stone Creamery and Currito.

Dan holds a Bachelor of Science in Business from the Richard T. Farmer School of Business at Miami University in Oxford, Ohio.  He is an active member of the International Council of Shopping Centers.



Born in Birmingham, Alabama, Hugo attended Vanderbilt University, where he played Division I soccer and graduated with a BA in Political Science and Russian Studies. He received an MA in European History from The University of Alabama at Birmingham. Hugo is a principal at CGRE, where he takes pride in demanding excellence, integrity and thoughtfulness from himself and everyone on the CGRE team. With more than 20 years of experience in commercial real estate, his focus today is on jr. box tenant representation and single tenant, net lease development.

He is past Chairman of the Board of the Birmingham-Jefferson County Transit Authority, where he spent ten years trying to improve transit alternatives in Birmingham. A founding member of the Birmingham Commercial Realtors Council, Hugo is its past President. He currently serves as Secretary- Treasurer of the Housing Affordability Trust and President of the Board of Navigate Affordable Housing Partners, organizations dedicated to affordable housing alternatives.



Nathan  joined S.L. Nusbaum in 2013 and has been in the commercial real estate industry since 1982 where he started in the Raleigh, North Carolina office of Shor & Associates, a family business that started practicing commercial real estate in 1970. Nathan trained under his father, Gerald T. Shor, and moved to Richmond in 1985 where they opened a satellite office of Shor & Associates. Nathan ran and built up that office until SHOR Real Estate, Inc. was started in January of 2000. Nathan has experience in all aspects of commercial real estate from development and leasing to management and finance. He has been involved in projects ranging from leasing 200 square feet to development consulting on 600,000 square foot projects, all with the same dedication and commitment to one thing, making the deal for his client, whichever person that may be, the buyer/landlord or purchaser/tenant.