Fannie Mae recently completed its first single-family rental securitization deal with a large institutional investor and the Urban Institute said demand for SFR financing is likely to grow. The $1 billion deal with Invitation Homes was announced in January as a pilot program. The Dallas-based company is the largest single-family rental operator in the U.S. and has a portfolio of about 50,000 homes that it acquires from foreclosures. As investors increasingly rely on leverage to earn an acceptable rate of return, these kinds of transactions are expected...