Croke Fairchild Morgan & Beres LLC added Michael D. Frisch as a partner. He will lead the firm’s government litigation and investigations practice. He most recently served as senior advisor and legal counsel to Mayor Lori E. Lightfoot.Frisch will expand Croke Fairchild’s capabilities to handle disputes, investigations, and other matters involving both private parties and government agencies, including the Commodity Futures Trading Commission.• Corboy & Demetrio partner Michael K. Demetrio was …