Barnes Investment Team Colliers International Barnes-Chasse Investment Team Community Involvement

Greater Phoenix

Phoenix Office
2390 E Camelback Road
Suite 100
Phoenix, AZ 85016
Main: + 1 602 222 5000
Fax: + 1 602 222 5001

Bob Mulhern
Senior Managing Director
Greater Phoenix
Direct: +1 602 222 5038

Community and Industry Involvement

We are deeply committed to supporting our communities, industry and clients through volunteerism, charitable giving, active participation and sustainable business practices.

MCSO Advisory Posse & Memorial Fund

Holding the rank of Colonel, John Barnes is the Commander and Chairman of the Board of the Maricopa County Sheriff’s Office (“MCSO”) Advisory Posse. The Posse provides manpower and raises funds for the MCSO Memorial Fund. John is the executive director of the Board for the Memorial Fund.

The MCSO Memorial Fund provides financial assistance to the families of injured and fallen law enforcement officers throughout the state of Arizona. Founded in 1998, the MCSO Memorial Fund is a 501(c)(3) nonprofit organization whose mission is to provide financial assistance to the families of all fallen or injured law enforcement officers throughout the state of Arizona.

The Fund and Advisory Posse are entirely made up of volunteers who raise money through various events and functions, such as car-washes, golf tournaments, live and silent auctions, and bar-b-ques. Our bylaws require that 100 percent of all Memorial Fund monies are and will be used for the benefit of the families of injured and fallen officers only.

Advisory Posse and Memorial Fund members are men and women who are business and community leaders who have a particular passion for taking on the responsibility of, as well as caring for, the families of those who put their lives on the line for the public’s safety on a daily basis.


Colliers International in Greater Phoenix established Colliers AZ Cares, a charitable foundation that is funded through donations from Colliers International and our professionals. Colliers AZ Cares supports and strengthens the communities and charitable causes that the people of Colliers actively serve.


Colliers AZ Cares Charitable Foundation

Colliers AZ Cares

Organizations supported through Colliers AZ Cares include:

  • Arizona Humane Society
  • Cross Roads Preschool
  • Fighter Country Partnership
  • MCSO
  • Phoenix Children’s Hospital
  • Susan G. Komen Race for the Cure
  • Phoenix Rescue Mission
  • St. Joseph the Worker
  • Valley Kids Foundation
  • Dobson Band Parents Association
  • Brokers for Kids (Scottsdale 20/30 Club)
  • Homeward Bound
  • Aid to Adoption of Special Kids
  • Stop Hunger Now
  • Desert Youth Hockey Association
  • Leukemia & Lymphoma Society
  • SIOR Educational Foundation
  • Goodwill Industries
  • Sereno Soccer Club
  • Arizona Women's Golf Association
Greater Phoenix
2390 E. Camelback Road, Suite 100 Phoenix, AZ 85016 United States | Tel: +1 602 222 5000