We confirmed that the tenants had moved out and the place was left in decent shape.

When we didn't offer them money back and they left a bad review.We have received confirmation from Airbnb support multiple times that the review violates their policy because it is clear retaliation, and gotten the review taken down, but the review keeps getting reinstated and we have to request it be taken down again. 

I liked the area geographically and for other reasons but once I had confirmation he was renting to nurses, meds and eds, grad students, university and hospital employees with good rent numbers, I was all in.

Judicious use of leverage (debt) when the property will still cash flow positive after debt service; when there’s enough equity left in the property to refinance if advantageous, and when sufficient reserves are held to cover vacancies, recessions, and unexpected repairs5.

It was clear to both parties, with email exchanges confirming that the end date is July 15th and lease won't be renewed.However, I forgot to stop the automatic rent collection through Zillow, resulting in the tenant paying the full July rent on July 10th, which has already been transferred to my bank account.

I read your article about finding good lenders and it is really informative; it confirmed what I thought about lending/financing for BRRRR. 

Many of them don't have a lot of cash reserves if they're paying high mortgage, rent, have children etc. 

Should I take a rout of a non-confirmed unit?

Those numbers would be ok, but do you have money for the downpayment, closing costs, capital expenditures, 15k for reserves?

Speak to your accountant to confirm the best option for you.Anonymity is not asset protection.