Carrie Prati

Mr. Fertitta represents clients with a primary focus in occupier advisory and corporate services encompassing the lease, purchase, sale, and structured finance of real property. Charles has over twenty years of experience in the office & industrial sector and represents clients with a local presence as well as clients nationally and internationally.  He is recognized as a tenant representation specialist, offering result driven solutions for users of office and industrial real estate, providing a single end-to-end representation resource for new locations, multi-location, extensions, expansions, and consulting. Clients are able to make smart decisions in the intermodal and multimodal 3PL sector by leveraging his logistics background.

Mr. Ryan has been involved in the commercial real estate business for 17 years, 13 years of which he has spent at Colliers International. 

Walker joined Colliers International in the Office Services Group in 2006, specializing in tenant representation and owner representation. Walker has been a top producer at the Colliers Houston office since 2013.

Prior to joining Colliers International, Mr. Ryan began his career at The Friedkin companies as a Financial Analyst, and in 2001 made a transition to Lewis Realty Advisors as an appraiser.  Following that, Walker accepted a position with Avail Consulting (formerly Arthur Andersen’s valuation group) in their Real Estate division.  In 2005, Walker made the move to U.S. Trust, as a Vice President in the Business Development division.

Walker’s abilities to determine value, to run and understand financial models and to work well with clients, coupled with his market knowledge, and working experience with the leading commercial brokerage firms, building owners, REITS, developers, property management companies and financial institutions make him an asset to all of his clients in their real estate decision-making process.

Serving as Vice President, Mr. Nash is involved in all facets of occupier services with a primary focus in advising corporate and non-corporate users of real estate to include lease, purchase, lease restructure, space disposition, and financial analysis of commercial property. As a native Houstonian, Mr. Nash has nearly a decade of experience in the office sector of the commercial real estate industry and represents a wide scale of companies ranging from independently owned, boutique businesses to enterprise-level, publicly traded corporations with local, national and international locations. As a tenant representation specialist, clients leverage Mr. Nash’s expertise in all phases of a transaction, resulting in the ability to make confident decisions supported by financial analysis and user-specific goals.

By implementing the motto of “you only have one thing in life, and that is your reputation” to both his professional and personal life, Mr. Nash delivers unprecedented results to his clients, as well as community and peers.

Ms. O’Donnell represents occupiers of office and industrial real estate. A negotiation specialist, she has a primary focus on lease acquisition, extensions, restructures, dispositions, as well as the purchase and sale of real property. Bi-lingual in English and Spanish, she brings a dynamic communication approach locally, nationally and internationally, which increases clarity in client interaction, the negotiation process, as well as the compression of client time lines. As a member of a team that operates in the top 5% of Colliers International globally, McKenna applies a process driven decision matrix approach to secure results and assist clients in making smart decisions.

Crissy develops and expands Colliers International's Houston and Austin platforms via a multitude of marketing channels including colliers.com, social media, graphic design, business proposals, and events. She is responsible for marketing business plans, systems, onboarding, and professional communications including budget, proposals, responses to RFPs, public relations, advertising, and property listings.

Crissy designs and conducts in-house training programs to elevate staff knowledge and to enhance new business skills. She organizes and executes company events and recognition programs to support and promote a positive work culture.

In 2013, Crissy was honored to receive the Colliers International Marketer of the Year award. In 2015, the Houston office took home the Best Market Intelligence Initiative and in 2018, Crissy was recognized with an influencer award for Driving Business Efficiencies & Effectiveness.  

Crissy earned the Commercial Property Marketing Certification (CPMC) from Colliers University.  CPMC is the first and only accreditation for commercial real estate marketing professionals. It offers a professional development path to increase strategic and tactical expertise in marketing/research, knowledge of the industry and capabilities with commercial real estate tools.

Lisa joined Colliers in 2010 as Director of Market Research bringing 26 years of commercial real estate experience to the firm. Lisa initiates proactive market research projects to further the business goals of the company. She writes and prepares 29 market reports annually which include quarterly reports on Houston’s retail, office, industrial and healthcare properties.  Further, she prepares statistical ownership reports for various clients as well as an annual Houston Economic Overview. Lisa also creates PowerPoint market presentations, trade journal articles, and other marketing materials in support of the company's business endeavors. She works with senior management in planning the company's marketing strategy and public relations support for local and national conferences, luncheon meetings, recruitment programs, and special events.  Lisa works closely with the company's brokers to develop effective custom market research material specific to both existing and potential clients.

Lisa serves on the Colliers International Editorial Board, the Colliers International U.S. Research Council, is a Colliers Center of Excellence team member and is a recipient of the Colliers International Researcher of the Year Award.

Lisa earned the Commercial Property Research Certification (CPRC) from Colliers University.  CPRC is the first and only accreditation for commercial real estate research professionals. It offers a professional development path to increase strategic and tactical expertise in marketing/research, knowledge of the industry and capabilities with commercial real estate tools.