Issuance of securities backed by servicer advance receivables has increased significantly recently and is expected to continue to grow, fueled by nonbank servicers and demand from investors. However, analysts at Standard & Poor’s warn that servicers are increasing their use of unconventional features and product types, which could increase risks for investors. S&P rated $7.8 billion in servicer advance securities from the second quarter of 2012 through the end of the first quarter of 2013, up from $7.7 billion from the two-year period ending in the first quarter of 2012. S&P said issuance is expected to increase as more and more servicing assets trade hands and servicers use securitization to fund their collateral acquisitions. Recent issuance has been driven...