And what 'is" is a tangled jumble of things. ai will just kick back an answer loaded with "and, if, but, when" because that is how the various statutes are, loaded with layers of variables that far too often make almost any action/answer right, wrong or unknown, sometimes simultaneously multiple or all of the above. 

In some situations, it may make sense to hire a pro to get the job done quickly and correctly, then you can rent it out earlier and offset the additional cost, or at least part of it.My first house took me six months to renovate.

Recent experiences of others may not entirely reflect your situation due to market dynamics.

Obviously everyone's situation is unique but I think most people underestimate how much in incremental earnings you can make if you figure out how to get the algorithm working in your favor. 

There are special rules for situations when you live in one of the units.Bigger Pockets is about to launch a section where you can get qualified referrals to tax professionals. 

R-3 Zoning designation would allow multiple manufactured homes on a single sewer/water tap.

It sounds like you've got a complex situation with your small syndications.

I have a theory that the more heavy things a tenant brings, the longer they stay because of the difficulty of moving heavy things multiple times. 

It’s going to be highly dependent on your situation, assets, etc.

I hope this helps get your situation on the right track and gets the conversation going with your accountant.