Pinnacle Property Management Services | 37,009 followers on LinkedIn. Pinnacle Property Management Services, LLC, (“Pinnacle”), owned by leading global real estate services firm Cushman & Wakefield (NYSE: CWK), is one of the nation’s preferred third-party multifamily management companies with a portfolio of 169,000 residential units and 2 million square feet of commercial space. Headquartered in Dallas, Texas, Pinnacle has more than 4,500 employees who manage apartment communities in 32 states, Washington D.C. and Canada. For more information about Pinnacle, visit www.pinnacleliving.com.