[CNBC, 04/02/2014] a lot of folks thought that the housing recovery would weaken rental demand and in fact, that sentiment hit the apartment reits pretty hard last year. investors were concerned about overbuilding. fast forward to the first quarter of this year. rental demand is still very strong. vacancies down 20 basis points to just 4% according to reit. rents continue to grow up over 3% from a year ago. they would be higher but landlords say that weak income growth is holding them in check. so with all that, it seems that investors have come back to apartment reits this quarter with a vengeance. the sector returned 12.75% in q-1 making it the top yielding of all commercial reit sectors.