Go for the easy stuff.

Calculating the depreciation base, typically guided by a CPA, is the primary complexity.Except figuring out the depreciation base to use (what amount from the total acquisition cost goes for land and can’t be depreciated, and how much goes for the building/improvements to be used in the segregation and depreciation calculations, and even that should be an easy answer to figure out or get from your CPA), the rest is simple stuff your CPA will not know anyway (thus him sending you the “survey”) like, the sqft of the house, the length of the fence and if wood/iron/brick, how many ceiling fans in the house, how many cars garage, if carpet or tile in what room, etc.

How did you arrive at the $40k number?

Unless you are going to do it legit and actually hire all the workers, get Workers Comp and all that good stuff?

Exciting stuff ahead for you.

And, believe it or not, some tenants will think that because there's a garbage disposal, you can cram stuff down either side of the sink, even the side without the disposal.

If you can't, you'll be out of business and none of the "how to" stuff will matter anyway. 

I think when looking at all of this stuff the two key insights are 1.

I have other stuff to do. 

Fix stuff asap that could cause issues, like a loose or rotten deck board.Many mortgages have a due on sale clause that would get triggered by a transfer to an LLC.