Last year multifamily total returns surpassed the average yield of the 10-year Treasury by 1,820 basis points, the most significant outperformance since 1979. This is according to Zelman & Associates research cited in Walker & Dunlop's new multifamily outlook. Of course, we know the sector has been good to investors in the past two years. What we really want to know is, will it still deliver going forward? Walker & Dunlop doesn't disappoint, providing forecasts on how multifamily as well as single-family rental will perform in the next two years. Following are five predictions for the asset class.