Interfirst Mortgage Co. the Chicago-based mortgage originator has raised $175 million to speed up growth and fund new technologies, just 16 months after relaunching its operations. The firm said on Wednesday that principals of the private holding company StoicLane led the round. StoicLane said Funds handled by Oaktree Capital Management, MFA Financial, numerous family offices, and other tactical investors were invested through StoicLane’s special purpose vehicle.