Robert C. Warren III, President

Robert C. Warren III has been managing income property portfolios and businesses for over 25 years. In the last 15 years, he has directed the management of over 5,000 multifamily units, more than 5 million square feet of commercial and retail space.. more


David Crain, Vice President

With nearly 30 years of real estate management experience, Mr. Crain brings an expert background in multifamily housing, administration and construction supervision... more


Patricia Sheehan, Vice President

Ms. Sheehan holds her Masters in Business Administration from Redlands University and has been actively involved in commercial real estate management and leasing for over 30 years... more


Ghassan El-Saadi

Ghassan El-Saadi has been directly involved in real estate management for over 20 years.  Mr. El-Saadi has a broad background in property and business management and is responsible for the daily operations and management of a portfolio of hotel, multi-family and commercial property along with operations of business and collection cases in receivership actions.... more

Joan Jacks, Director Of Human Resources,

Joan Jacks is certified in payroll compliance and Human Resource Management through the university of California, Irvine. Overseeing some 200 employees, Ms. Jacks has worked with Investors Property Services since 1994 and brings a 30 year background of HR administration experience to the company. ... more




Our Executive Team Focuses on Results Oriented Management.


The Executive Team oversees a complete staff of experienced professionals who take care of your property in terms of accounting, maintenance and day to day operations.  With the ability to work within tightly-controlled budgets, Investors' Property Services has consistently managed commercial and retail projects to the highest standards. Our experienced and responsible management staff comprehends the value of building appearance as well as operating efficiency.

Janitorial services, landscaping services, security services, preventive maintenance operations, vendor contract negotiations and disbursements, taxes and budget preparations and financial controls are handled with a level of achievement unmatched in the marketplace.

Visit our Core Services section for a comprehensive list of management services.