Baltimore city has a lot of them but unfortunately multi family in neighborhoods you would want to live in are rare and expensive.

The actual numbers came below:Purchase: $98,752.00Renovations/Holding: $79,211.54*Sold Price: $207,500.00After Closing Costs Profit was $24,066.10... with the caveat that it was a combined effort with my father and the split was $12,033.05.Long story short, the house was purchased in Nov 2015, worked on between 3 other houses I had/have, and sold in March 2017.

I've been here over nine years, and cap ex is a killer when combined with property taxes.

You allocate that based on square footage, so if all three units are the same size each gets one third of the cost basis, but if the main house is the size of the other two units combined then it'd be half to the main house and a quarter to each smaller unit.

In my jurisdiction evictions for other than non payment are rare.

The buyers have to jump through many counseling hoops for 6 to 12 months, they are a pain to deal with and very rare that any will ever close.

It's rare that I would have a completely empty duplex, 3 plex, or 4 plex, so for the most part I'm covered.

Partnerships rarely end well, especially if no previous relationship. 

I think their best bet would be to find a way to combine that unused space into one of the current units.  

That will allow you the best chance of getting 100% of your cash out.If your ARV and the Appraisal are $200,000 (They rarely are the same)All-in costs should be $140,000 (allowing $60,000 in forced equity growth).