Carmel-based Mainstreet has added to its leadership team. Mary Ringis (pictured) has joined the company as asset manager. Erik Hansen (pictured) was hired as chief compliance officer – broker dealer and Kelly Henderson was named director of marketing. Paul Madden was appointed construction manager and Toby Miller was named design manager. For Arizona Mainstreet Health, Sonja Nelson was named vice president of strategy and business development. Elizabeth Racine was hired as vice president of clinical operations, Texas for Mainstreet Health.