2- if there is a “problem” Will the “solution” discussed solve it in a cost effective, consumer accepted way?

Negotiation tip #47, make it as simple as possible for the other party to accept your terms.

Once the sellers accept the offers.. 

Imagine if it cost 1000 to send out 50 letters but half of them responded and half of those wanted an offer and half of those accepted an offer and half of those closed and half of those resold for a net 50k. 

ABL, which is the basis for HML/fix and flip lending, will have different criteria and different focuses than multi-year loans based on cashflow and borrower credit score (long term mortgages).

I haven't accepted the offer.  

If you are broke and trying to quit your job asap, the answer will be much different than what an acceptable answer would be for a professional investor who is a multimillionaire.

My offer got accepted for an investment property in Pennsylvania.

Hi,I accepted a tenant at the beginning of December.

Hire an attorney and proceed with the eviction.In the future, I recommend you don't accept "landlord references" from friends or family members.