I would lean towards solid multi family homes over single family. 

Naturally, we charge a higher rent ($450 - $500/month) when renting by the room than if we let an entire house on a single lease ($360 - $425 per room per month): since we are carrying the utilities, have more administrative overhead and have to deal with housemate drama.

Where realtor.com will show you a map, and zillow will show you off market homes they consider similar, redfin will actually show recently sold comps as thumbnails so you can narrow it down at a glance (for example if your house is single story with no garage you can ignore two-story houses with garages). 

I moved to Dallas one year ago, and at that time, single family homes in Carrollton were in the mid-$300k range.  

Grab pics of a house, post it on Craigslist super cheap.

We were quoted $130K for every single thing, including extras that we wanted like a sump pump, the mold remediation for both houses (2 came on this property) was $20K alone, @Mark Gallagher.

I had one partner who bought a couple of small trailer parks and then continued to just buy single lots all over the three County area with boxes on them.

Hi all,I currently own a single family home in Arlington, MA but am looking to rent it out to be my first rental unit in my portfolio as I'll be relocating to NYC.

Are QuadPlex properties appraised with comp sales like a single family or a duplex would be, or is it appraised using cap rates like apartment complexes are?

I am primarily interested in 2-4 unit duplex, triplex or quads in Mercer and Middlesex counties except Trenton under $150k or single units (condos, townhomes or SFH) under $100k in the same areas.