Have you spoken with banks that said they will not accept it and have they given you a reason why not?

If you look at the way the courts explain an as is clause, the effect of such a clause is to shift the burden regarding  mistake or defect to the accepting party.

The seller accepted it that day of July 15, 2017.

What makes you think they will accept anything close to 50K in an area like Clarks Summit with that yearly income from the property?

I had some serious enquiries, so I accepted one and then built the cabin the day before they arrived :)Since then I've been hosting on Airbnb and performing music and really enjoy the vacation rental thing SO much more than traditional land-lording.  

If you can reduce by an amount that still keeps you in your acceptable range for rent, try to find a way to keep her.You can give her options too, between leaving without penalty or staying with reduction in x-amount.

If that's the case, let her know now it's not acceptable and post a pay or quit after the rent is due in October and follow up with an eviction.  

Why would they accept to work with me for six unit multifamily that is built already and they wouldn't when I want to build one?

Buyer needs to counter with what they deem optimal and try to find middle ground both can accept.

I have 2 offers that have been accepted and we are in the inspection phase at this time of RE that cash flows.