I did buy in Detroit 10 years ago for $16,000 Now worth $500,000.00 My nextdoor neighbor (house 2400 sq ft) sold 3 weeks ago for $339,900Mine is 4987 sq ftI always posted I was in Detroit for the appreciation the cash flow was added benefit!

The seller was very motivated yet had done nothing to market the house: no Craigslist ad, no Zillow, nothing. 

As a side note, Deleware is a horrible place to inc unless your a large corporate interest, large enough to rival a publicly traded co., Deleware is amazing and designed for those entities.

It is a large sum so I would think carefully about it.

If they will be turning around and renting it our, then they would get a Rental Dwelling/Landlord policy.The seller should be added as an additional insured as they still are tied to the property and could be named in a lawsuit. 

You may have built enough equity in the first to be able to refinance to conventional without much added expense.  

Is it okay to say to my realtor, "Hey, help me get this deal done and you'll make your money when we buy the large multi?"  

The plot also contains 9 studio apartments.

The reasons wholesalers make money are essentially 1) speed to close, and 2) large deferred maintenance that precludes typical sales.

This way they are not incentivized to go over budget and they have an added incentive to come in below the GMP.We do this all the time on large projects.