Miller who carries the title of chief operating officer and general counsel, will be involved in all aspects of the company's activities, including joint ventures, mergers and acquisitions, product development and operations as well as directing its legal activities. Before his tenure with Guardian, Miller was executive vice president and chief financial officer at American Golf Corp. and National Golf Properties.

The new Thompson National headquarters is at 1900 Main St. in Irvine, where the company has expanded and taken over the entire 22,464-sf seventh floor of the eight-story, class A office building. Thompson was represented by senior vice president Jack McNutt of the Newport Beach office of Grubb & Ellis Co. in its new headquarters lease. It has retained the 7,444 sf of office space at 1901 Main St. in Irvine where its headquarters was previously located.

The hiring of Miller as COO and the expansion into the new headquarters follow other recent moves by Thompson National that include the hiring of Robert Cade as managing director of Thompson National Properties and chief investment officer of the TNP Debt Fund LP. Cade was previously director at Wachovia Securities in the Real Estate Capital Markets Group since 2004, where he was the senior CMBS credit officer, based in New York.

Wachovia was the leading originator in CMBS with annual production volume in excess of $22 billion and $24 billion in 2006 and 2007, respectively. Before that, Cade held senior positions at RAIT Investment Trust, Merrill Lynch and Chase.