I've had owners try to steal tenants right after we placed them so I understand their apprehension. 

I understand.

Now that if I do end up hiring a CPA, I'll have a better understanding of what's going on.

If you look at those websites you can get an understanding of the process and costs involved. 

You should also look into getting your own bid.This will take some work on your part or you MUST understand that you will pay someone for saving you time.

For the lenders that do a 0 with decent credit you will need to put down 15% - 20% on a bridge loan and that's with 720+ credit.More than that though, you need to understand the capital requirements. 

Be sure you understand the tax benefits and the errors that are often made that limit those tax benefits or come back to bite.

I 100% understand that state, county within state, building type, age, depth of coverage, etc., etc., etc. is going to make every property unique, but it would be great to come up with a rough rule of thumb that will allow a conservative estimate.

I am getting very close to understanding it.

As I understand it to invest it in a property it needs to be wholly purchased and maintained by the IRA.