SAN ANTONIO — A partnership between Artemis Real Estate Partners, Ackerman & Co. and MLL Capital has purchased a four-building portfolio of medical office properties totaling 423,411 square feet in San Antonio. The 128,578-square-foot Santa Rosa Professional Pavilion and the 123,324-square-foot Rosa Verde Tower are located in the city’s CBD and Northwest Towers I and II, which total 171,509 square feet, are located within the South Texas Medical Center. Lee Asher, Chris Bodnar and Scott Herbold of CBRE represented the undisclosed seller in the transaction. Ed Cross and Brent Smith of Cushman & Wakefield represented the buyer. The new ownership will invest $27 million in renovations to the portfolio.