(but not zoned for) Property is currently offered at 750k , a property right beside almost identical was sold for 725k on conventional mortgage and it was initially offered for 769k. (5.72% decreased on a conventional mortgage that took almost 4 weeks from pending to sold).So based on this data I have estimated(not exact science) that I could give a lowball cash offer for 550k(maybe w/ some luck) but with some room to go up to 635K (which is a 14% decrease on the listing price and hoping to close fast with a cash offer) 70% of $900k is only $630k, which would be the max you could refi. 

One important lesson that I've learned from my research so far is to pay close attention to the numbers and data in any given real estate investment endeavor.

I would be willing to run errands for a real estate investor, do data entry, or whatever.

One important lesson that I've learned from my research so far is to pay close attention to the numbers and data in any given real estate investment endeavor.

@Brandon Sturgill I don't have the knowledge/time to use only data I collect myself yet.

I was prepared and had data for her to look at, and calculated that we would not only pay off all her expenses, but will easily recover the money in a few months since we aren’t paying those bills anymore and will be more prepared to invest in January.  

With all that data provided you only focused on “i have $0 for a down payment” And the solution to that is borrow some equity frm your properties.

All these avenues should help you in refining your approach before you can ask questions related to the type of debt, data (T-12, RR), reasons why the owner is actually selling so you can define what approach to take in term of financingI hope it helpsGood luckCedrick

Also- have you looked into short term renting or rent by the room- basically explore all options to increase your cash flow if you held it. 

Some good data there.