The back house had long term tenants and the place looked dirty - wasn’t taken care of or cleaned in a very long time.

It gets easier.

Having detailed written policies makes this easier.

It shouldn't cost extra money and it's much easier than going online to figure out what you want.Some might be Seniors with Long-time Ownership and Homeowners with Low Financial Stability Scores.

Easier properties to manage and learn the ropes.2. 

I had one that moved out Sep. 1st and it was a bear to get filled by the time I cleaned got the repairs done.

The reason I mentioned looking for a triplex or duplex is, that it would be easier to sell to an underwriter that it is an upgrade from your current place. 

In this tight inventory market, it's far easier for you to find a 70% ARV home than it is a 60% ARV home to have room for an assignment fee.Obviously, we do it every day in both categories, but I'm also a Licensed GC with dozens of crews, a full office team including a rehab manager, etc... so it makes flipping very easy for us.Flipping is much riskier from a time, money, rehab, construction, crew, theft, vandalism during ownership, lawsuit, insurance, holding cost perspective....but we still do plenty of them.We used to be 80-90% retail flips. 

The front tenants keeps her apartment very clean the middle tenant complained about mice and the back apartment is empty.

If you have a good track record, and the numbers in the new deals make sense, it might be easier than you think to find willing partners.