San Antonio, TX-based Comcapp Cornerstone LLC, a private investment group, purchased two multifamily communities near Sam Houston State University Campus in Huntsville from Cornerstone Apartments. Both properties had a total appraised value of $6.79 million. The Cornerstone Apartments, at 2209 Bobby K Marks Drive, is 80,640 square feet and has 84 units. The Woodcreek Apartment Resort at 1235 Josey St. is 138,776 square feet and has 196 units.