A startup mortgage bank is eyeing a big role in the subprime market with a strategy that will use technology to deliver quick loan decisions to brokers. “Our motto is three words: ‘prompt, simple, and friendly,’” said Charles “Brad” Bradley of North Carolina Senderra Funding. Headquartered in Charlotte, the wholesaler is currently offering nonprime loans in 10 states, including Florida, Indiana, Maryland, Michigan, Minnesota and the Carolinas, with plans to add 10 more within…