The lease stays in place with the sale...you inherit it, so there is no change with the change in ownershipRun your numbers based on the current situation and lease..... then run it on a conservative plan based on increased rents and factor in turn over cost, renovation, vacancy etc..... based on those number you decide if it makes sense to try and buy them out with "cash for key" or suck it up for a year with the current lease or worst case walk away from the dealIts definitely worth a shot to try and renegotiate the selling price based on the current rent..... but sounds like it wont budge much....No way would I try and extend the lease even farther with a tenant that I know ZERO about.....

If you agree to his budget then any overages would be at his expense and not factor into the profit split.  

@Elisha CramIf you are operating this like a hotel or b & b, then you'll have to factor in self employment taxes as well.

When you factor in closing costs (up to 5%) when you buy and commission (6%) when you sell, the property is going to have to appreciate fairly significantly to come out ahead in a 5-6 year span.

You can definitely factor them into the equation if you would like to.

I usually have a little notebook next to me that I take notes on , and then type that into a document I have on my external hard drive for reference.

What kind of numbers do I need to factor into well and septic or would that factor into cap-ex?  

What are the most important factors to look at when trying to choose the best residential properties to flip?

You'll learn a lot, save alot of $ in living expenses, and also you'll be on site to manage the property as well (but still factor in 10% management into your numbers).

I would expected that rehab should be reflected in the appraisal value, but other factors such as tenant placement which are valuable to me as an investor, would not show up in the appraisal report.