If it is simply the house and the tenant pays all the utilities, I personally would not charge more because you are renting them the house-not based on how many people are living there. 

Where are based out of?

Ceiling white matte, walls Navajo White eggshell, trim base white semi gloss. 

Best guess of his reason for selling is that he bought it low and during covid, stuffed every unit and room with a tenant on a month to month basis and now wants to sell at the max price based on the comps of the area.

Regardless, you will likely be adjusting the expense base to reflect the tax reassessment (which you can obtain from the local county), insurance (from your insurance broker quote), property management fee, and usual repair/maintenance expenses/admin/advertising/contract services/utilities.

The good news is the bigger the loan, the more more open the banks to lend you a non recourse loan, that means you dont need a guarantor in the US, they will underwrite based only on the property cashflow.

While demolition costs are nondeductible, a taxpayer may claim a loss deduction when the depreciable business property is retired from use in a trade or business or from use in the production of income.I would strongly advice talking with a real estate focused accountant here to help guide you.

@Luke RentzI am going through it at the moment, but I am going through it as a lender.I have had our attorney send the demand letter based on item 18 of the mortgage:Transfer of the property or beneficial interest in borrowerAfter the 30 day demand we will file for foreclosure.

Based on that, the determining factors would be how much the appraisal would be right after close vs waiting 6 months and whether the interest rates would drop.  

RE markets are efficient and based on numerous criteria.