I wouldn't be super punitive on this since you continued to accept payments monthly until they wanted to pay off.

HUD provides the list to their Section 8 clients for properties accepting Section 8, but it doesn't have a good reputation.

If everything else looks good, I would probably accept them with a double deposit.

I do find it hard to believe the seller’s expenses unless they’re backed up by some official documents but unfortunately I’ve read that I could only receive them after an offer has been made and accepted when I’m doing my due diligence.

Kevin If you don't currently have a down payment, you negotiate with the seller as to what is acceptable to them.

You're legally required to honor the lease contract unless you can incentivize the tenant to accept a termination. 

We’re one ofthe few property managers that require W-2’s and a bank statement and we go way beyond the traditional, “income must =3x rent” qualifier.Below is more information about what our Applications Department does to screen applicants and find the best tenantspossible for your property.Required InfoWe require the following from each applicant over the age of 18, that is not a dependent of anotherapplicant (as evidenced on a tax return):Copy of acceptable state picture IDRecent YTD paystubRecent W-2Recent Bank Statement, all pages, no info blacked outRecent tax return if self-employedApplicants are often slow about turning this information in, asking us why we need it and then takingseveral days to submit.

I can assure you, I would have those tenants out as quickly as possible, then I could complete my inspections and either accept the sales price, negotiate repairs or a price reduction, or walk away from the deal.

Also Booking.com somehow doesn't accept credit card anymore after the integration and right now I just found out a guest is checking in on Wednesday and he's paying cash. 

Some states also grant tenants a ROFR to buy the house they're living in and there are all kinds of notices that have to go back and forth when you accept an offer to give the tenant the opportunity to match it.