If the seller is going to "carry the loan" the loan,  it sounds like a seller finance to me.

I am thinking about negotiate another 10k from the price or ask for 10k credit.background: under contract price 420k, the seller passed away with a reverse mortgage balance of 380k ish.

Seller financed, turnkey from another investor.

Who knows, maybe some day they'll toss you the keys for real on a seller financed note ?

Building relationships with investors and sellers through local meetups can unlock valuable deal flow.

Would that normally demand a higher sale price/cap rate based on investor appeal?

Can the original seller still cancel contract cause funds wasn’t provided by closing date listed on contract. 

Getting 5 star reviews is a learning curve as you need to be a good communicator and be sensitive to guest needs, staying booked is about demand and whether your place is priced appropriately.

A settlement statement summarizes costs owed by or credits due to the buyer and seller. 

I am a realtor but I am not always available and he is such a demanding person and only meet his time requirements.No application or nothing from him except the potential tenant questionnaire.I would rather he will not internets my property.