I think it's very situation dependent. 

You can buy 2-3 properties depending on your location and sale price.

Depending on the market self-storage, medical office or other commercial types might work for you. 

I personally think tile is easier to repair.I think the choice really depends on your type of property, class of property and budget.

Also, plumbing and electrical lines running it could be a big cost depending on your home layout.

Finding dependable and fairly priced contractors can be difficult, but taking one step at a time is the best strategy.

https://finance.yahoo.com/news/commercial-real-estate-a-manageable-problem-but-some-banks-will-close-powell-161201936.htmlI think this all depends on the market.

Rates are about about a point higher than normal DSCR loans (1-4 units), but you can get a rate in the mid 5's (with decent credit) on, like I said, a 30 year amortization (fixed).It will cost a few points (probably 3 depending on the loan size) and the appraisal will be a narrative appraisal, so expensive, but they close and cash flow well with the longer amortization.Find yourself a good commercial broker.Stephanie

Also, depending on the policy language, that policy could be primary. 

There are obvious pros and cons to each model and, again, it's very dependent on the individual.