Usually, ROI's tend to be about the same.Do you see more advanced bookings with the larger properties? 

I usually do an 18 month lease if starting in the winter with the hope that if they do not renew, at least I can advertise the unit in the summer.

Seller financing is usually a huge plus and I look for it first in just about every single deal I look at.

Usually a real estate agent will know how that is done.FHA can have multiple surprises. 

A 401(k) has to be repaid fairly quickly and is restrictive so I don't usually recommend those. 

What I do to overcome these scenarios as follows:- Calculate rent estimates from Zillow, Redfin & RentApp & find the average- For sales comp, I usually increase the radius way more than 0.5 mile.

If it became necessary to evict a resident for another reason, unpaid rent is usually a pretty clear lease violation.

They usually tally it up at the end of the year.

Sure, plenty of people will buy them but it's usually a smaller segment of the market than investors buying a vacant house.

It usually results in a great return or a large loss, with not much in between.