COLUMBUS, OH-Midas Hospitality LLC based in St. Louis has bought the Staybridge Suites, a 111-room hotel located in the Tuttle Crossing mixed-use development, for $6.8 million.

NEW YORK CITY-Newmark Knight Frank, a realty services company, has been appointed by The Rosen Group Inc. to lease and manage its 19-property office portfolio in Manhattan.

COLUMBIA, MD-Wells Core Office Income REIT Inc., a real estate investment fund of Wells Real Estate Funds based in Norcross, Georgia, has purchased the Franklin Center Building for $65 million.

VALENCIA, CA-PacTen Partners has sold its roughly 15,000-square-foot building located at 28721 Industry Drive in Valencia to Adept Fasteners, a distributor of fasteners for the aircraft market, for an undisclosed price.

WINTER SPRINGS, FL-ECI Group Inc.'s affiliate Seminole-Winter Springs Associates LLC based in Marietta, Georgia, has purchased a 208-unit apartment complex located on Red Bug Lake Road in Winter Springs for a price of $15.9 million or $76,202 per apartment.

WASHINGTON, DC-Greystar Real Estate Partners is seeking to market its Grosvenor Tower, a 237-unit apartment building located at 10301 Grosvenor Place in Bethesda.

DALLAS-Whitestone REIT has acquired the Shops at Starwood, a Class A retail center located in North Dallas, in an all-cash transaction for $15.7 million.

SAN JOSE, CA-An investment group led by Lew Wolff, a real estate entrepreneur and owner of Oakland A, has purchased the Sainte Claire hotel for an undisclosed price.