Citadel Servicing Corp. continues to ready its first nonprime mortgage-backed security and received risk assessments from Morningstar Credit Ratings last week. The rating service evaluated Citadel as a lender and servicer, assigning it level-three rankings on a scale of one to four, with four being the worst. The assessment, along with a similar assessment by Fitch Ratings earlier this year, show that Citadel is taking steps toward issuing rated nonprime MBS. Sources close to ...