I suspect I will throw more money at a problem Airbnb has no interest in covering

It's a small place so I'd guess it won't rent for enough to cover your expenses anyway so I'd probably sell, especially if the loss is small, it unless it's in a great neighborhood that you think will do well over time. 

At this point, I would recommend having a line of credit to cover these things so you don't have money sitting in the bank doing nothing when it could be put to work.I have 33 units, no debt except for mortgages, and excellent income.

It may well form part of the bank valuation in terms of square foot, and it may be covered in the habitation license (the habitation license would cover house + annex), but it will be treated differently and need to be closed off for rental.

And all suppliers and subs are current as is the customer .  

I also have a friend that bought brand new construction, but had to shell out tens of thousands in repairs because the home wasn't built properly, the inspection didn't catch the issues, the builder didn't have a warranty on the property, and insurance didn't cover all the problems.

We recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.

Their clear incentive is to bet on falling interest rates between now and debt maturity.A small handful of owners are forced to sell due to a looming balloon payment that a refi won't cover, but you're not going to find one of those by driving the market when any commercial broker can just look up properties on that basis and start making calls. 

We have done it both ways where we fund purchase and they cover rehab but if the individual is less experienced we do not do it that way, we have them put more money into the deal from the start and fund the draws, reason why is we also had a deal where the person said they would do this and never did anything and property sat and loan matured and it was a pain.Just recognize you will still not get 100% financing for the purchase, so you are putting money in up front. 

Assuming you don't have a mortgage that requires a certain level of insurance, you can get a stop-loss policy covering all the properties.