Best markets for buy-and-hold rental properties

[Delaney C.]

Hello everyone! 

I am new here, so I hope this is the right forum to post this question... I am interested in getting my first couple properties soon (within the next 6 months), and I am trying to decide on some good markets to invest in for buy-and-hold rental properties. Cash flow and ROI are the main things that I am focused on here, so appreciation and equity are not my major concerns.

I am also trying to decide on whether or not I should invest in single or multifamily residences. What is your opinion on homes vs. apartments?