DENVER-AmeriVest Properties takes slightly more than a 9.6% interest in Sheridan Investments, owner of the 118,000-sf Sheridan Plaza at Inverness office building. AmeriVest bought the shares from some of its own officers and directors, affiliates of Sheridan Realty Partners LP.

SAN DIEGO-Spending by tourists, conventioneers and other visitors is again at a record pace in attraction-rich San Diego County.

SEATTLE-UReal next week will begin marketing a collaborative software tool that enables brokers to show properties to clients on-ine in an interactive, real-time environment. The service, currently in beta-test mode, will be available in December.

TACOMA, WA-Valerie A. Sivinski, 49, an architectural preservationist well known in Tacoma for her dedication to restoring historic buildings, was killed Tuesday when a delivery truck backed over her while she was shooting a photograph for a presentation.