We bought it in cash with 9 investors for a total of 970k contributed.  

Why, because of the main stable coins, it is the only one on of the largest exchanges, Binance, will NOT do a 1:1.So, you're best bets would be those like USDC, TUSD, GUSD, BUSD.

On the other hand, a detailed quote with a higher total may offer more transparency and reduce the risk of surprises as the project progresses.I specialize in consulting services for situations like this, where I help clients evaluate contractor quotes, ensure transparency, and navigate the renovation process with confidence.

Quote from @Brian Malavsky: Totally agree with everyone else and I didn’t see anyone mention an “Umbrella Policy” I just got quoted this week for $1,000,000 coverage for only $350/yr.

Later I was able to buy the vacant lot between for a grand total of about 2.4 acres.All the houses are in bad shape.

Given your stated position of things, assumptions of skills and network, I'd say your best path is a totally different one. 

Can we DSCR out of this to get our money back out or will I need to sell it to get our $136k total investment out?

According to your numbers, the total acquisition cost will be $265k, so you must be doing an FHA 203(k). - That's important to know!

I totally agree that most agents are horrible negotiators.

But my down payment 3 years ago is only 10% of the total price $42K.