Baker Botts, an international law firm, will be the first tenant at the forthcoming RiverSouth development at 401 S. First St., Austin. The firm—which has operated an office at 98 San Jacinto Blvd., Ste. 1500, since 1988—signed a 12-year lease. The building is expected to open in early 2021. 512-322-2500. www.bakerbotts.com