It will be interesting to see how difficult it is to get approved and how much of a pain FINRA is to deal with.  

This could be easy/inexpensive (if there's unfinished space below) or it could be difficult/expensive (if there's finished space below).

I do some of this myself but don't always want to, or have time to, and I'm getting to a portfolio level that makes remembering every house more difficult. 

It is difficult to sell just one or a few properties because they have to be released from that one loan.

Hey, I recently signed up for a broker course so I can get my license and I'm wondering if the course is difficult? 

Can you provide your experience and the degree of difficultly in acquiring property this way?

It'd be a difficult situation to get done honestly, if the tenant you're proposing to replace you was a strong enough candidate, a conventional finance options would love to do this with you.

But for an LP especially it is difficult. 

Meeting the right people, discovering the right neighborhoods, and more than anything else, getting started was the most difficult part of the whole process.

You might burn some human capital (like, frustrate your broker/banker/lawyer or the other side) if you go under contract then find something you don't like and don't buy... but obvious I'd prefer to do that than to buying a house with expensive or difficult issues.I know from experience that FHA loans for 3+ family homes can be a little challenging (they have to meet a "self sufficiency" test, where the rents for the units have to substantiate the carrying cost of the property).