A standard oil tank removal will be about 2-3k with permits, testing, etc. no too bad.

What's the standard around it....all single family....then the answer is likely they would not approve a variance in my opinion.If lots of 2 and 3s then they might.If you don't have the right zoning approval at some point you could get stuck...and not in a good way.One thing I have seen too is if you go and ask...hey I'm thinking of this...and they tell you no it won't happen/can't happen and you do it anyway....they often win that fight....I would be generic in your discussions if you can.  

What you can do is convert to a subcontractor with your employer (if they'll allow it) and then you'll get all kinds of tax advantages for being a small businessowner, but you can't just convert W2 income into a corporation.The tax professional standard isn't met only by 750 hours.  

After 6 months (once a month) I go to standard letter or postcards.

Of course when it comes time to exercise the option to purchase, then everything goes through the standard purchase process with title/escrow, notary, county clerk, etc...  

It may end up that you give all your proceeds to the bank first and you take your profit on the last couple of homes (which is standard).

If not, then it's a standard 10%/20% down and figure those payments. 

That being said standard association master policy does not exclude coverage for water damage that results from poor craftsmanship of a contractor under any circumstance .

Would you pay off the heloc or just make the standard payment and keep all the cash for additional purchases?

Rehab them up to Market standards and/or improve the operation.