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Pat is President of the Houston office of Colliers International.    Pat relocated to Houston from Florida where he served as President of the Colliers offices in Tampa Bay, Orlando and Southwest Florida.

Pat has over 34 years of experience in commercial real estate as a producing broker, educator, sales manager and managing broker. Pat enjoys assisting people with creating strategic and tactical plans leveraging his broad-based commercial brokerage background as a practitioner, manager and instructor.

​Pat started his career as Director of Marketing for a real estate data base company where he spent three years interviewing top brokerage houses throughout the United States and assisted in their automation needs as a consultant and instructor.  As President of the Colliers Houston office, he has direct responsibility for recruiting, training and managing the sales and leasing teams, property management and business plan creation and coordination for the company.


Pat was responsible for building and organizing retail service delivery capabilities for Colliers in North America as chairman of the Colliers Retail Specialty Group (96-2000, 2002-2013).  Pat is also a founding member and is currently Chair of the Colliers Oil and Gas practice group.  Among his academic accomplishments, Pat wrote the capstone case study for the CCIM program's final course offering from 1986 - 1998. The case study combined the marketing and financial concepts taught by CCIM to allow the students to apply the material to a simulated commercial property disposition.

He has been an instructor for Nacore's (now CORENET) Intermediate Finance Course and was awarded the Top Rated Faculty Certificate in 2000. Pat is regularly quoted in national and regional publications including the Wall Street Journal, Dow Jones, Newsweek, Real Estate Forum, National Real Estate Investor, Globe Street and others.  He has been an expert panelist for NAIOP, Real Share, ICSC and many other real estate organizations.

Pat has served as a member and chairman of the Colliers Managers Steering committee, on the Board of Directors for Colliers USA and is immediate past Chairman (2015-2017) of the Colliers USA Board of Advisors.   In 2003, Pat was awarded Colliers Manager of the Year. In 2004, he was chosen by Colliers International as the Tom Richardson Award recipient, an honor based on strength of character. In 2012, Pat was chosen as the recipient of the Colliers USA Pinnacle Award for service excellence. Pat is the only person in Colliers to win all three of these awards.   In 2017, Pat was named a "Best Boss" by Real Estate Forum Magazine.

He is currently an instructor for Colliers Client Engagement series for Colliers University.


Corporate Solutions, Brokerage: Landlord Representation, Brokerage: Tenant Representation, Capital Markets and Investment Sales, Retail, Office


  • Lasco Enterprises / Max's Wine Dive
  • Wexford Capital
  • Energy Related Properties


  • Bachelor of Science - Louisiana State University (Finance / Pre-law)
  • SIOR - Office Brokerage I & II
  • MCR - Intermediate Finance,
  • MCR - Advanced Finance
  • MCR - Negotiations,
  • MCR - Surplus Property Disposition
  • MCR - Retail Site Selection

Affiliations & Memberships

  • ICSC
  • Corenet
  • CRSG

29.75318200 -95.45998800
Pat Duffy


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Description Price Total Space Property Type Offer Type
Permian Basin- Midland Industrial Portfolio

Permian Basin- Midland Industrial Portfolio

Midland, TX 79707

Colliers International is pleased to exclusively offer to qualified investors the oppor... Save

N/A 146,089 sq ft Industrial For Sale
Trophy Class-A Office Towers

Trophy Class-A Office Towers

500-550 W Texas Avenue Midland, TX 79701

Colliers International is pleased to exclusively offer to qualified investors the oppor... Save

N/A 421,546 sq ft Office For Sale
Iconic Investment Opportunity - Exceptional Mi...

Iconic Investment Opportunity - Exceptional Mi...

508 W Wall Street Midland, TX 79701

Colliers International is pleased to exclusively offer to qualified investors the oppor... Save

N/A 177,952 sq ft Office For Sale
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