One big issue could be liability...for instance, if storage is in the basement and there is a flood then who is at fault and who is responsible for the damages? 

For instance are you going to keep track of the finances yourself or give your accountant a shoebox of receipts at the end of the year? 

I know here in NJ for instance there is a first time home buying incentive of $10,000 towards the down payment.

A good method to use is to search google for top real estate agents in your local area (like top 50 for Coldwell Banker, for instance).

I found @Matthew Olszak post regarding the AVM vs BPO,  insightful and in some instances may not be a big difference in terms of accuracy between the two depending upon who is pulling the BPO.  

For the most part if there is a defect in tittle you will not be a able to get tittle insurance which would allow you to walk away from the deal but I believe there are instances where there might be something small on the tittle and insurance may still may be able to obtained.

For instance the cost of a turnover usually is a few thousand, plus legal costs and potential heat payment over winter. 

There are a very few instances in which the courts might possibly reverse the sale, but they are few & far between.After the tax auction the money goes first to pay the County taxes, then lien holders (if any) can file for the remaining funds, which are awarded in order (ie a first TD gets paid off in full, then the 2nd, etc...if they file for the funds).

Inquire into why it is assignable, for instance: to whom it is assigned and why, and how much the new buyer is paying the original buyer - AKA – an assignment fee.

For instance, if the person you lend to stops paying all of a sudden it becomes a headache.