And then while it’s in the process you provide your QI will all the cash needed to finance the property.

I wouldn't be selling in this market personally, so if you don't sell the SFR and you really want to do this, a DSCR cash out refinance on the triplex, or a hard money 2nd is your only option to get the liquidity needed to make this move.

Our goal is to find and invest in cash-flowing properties.

Probably their contract says they could do the same to you, just returning your earnest money as liquidated damages.Now if you were a cash buyer, that all might have different consequences.My 3rd thought is discuss this with your new employer. 

Purchase price: $770,000 Cash invested: $300,000 First house hacked for 2 years then moved out and converted to mid-term rental.

Cash flowing $1250/mth Lessons learned?

Purchase price: $50,000 Cash invested: $30,000 First BRRR property.

My profile is a 700-credit score, $200k W-2 salary and $5,500 in monthly rental income and limited cash. 

They have a very personable approach and are genuinely aligned with your goals.

Although i have positive equity and the value of the house went up I’m breaking even with no cash flow.