Anytime you buy property with a party in possession (PIP) you run a risk of a defense to the eviction being raised.I worked on on title claim where the PIP produced a lease which claimed he prepaid five years of rent to the former owner. 

I ask for closing costs, pre-paid property taxes, all kinds of stuff up to a couple % of PP. 

Lol -- the $123 difference is more than I thought but your purchase price is higher than I thought it would be from the title.With the payments sooo similar (4% difference), and the interest rate not too different, I'd save the 10k down payment (less the MI 3k pre-paid difference) and pay the extra monthly.

@Caroline Gerardo I should clarify that’s including escrows and pre-paids.

@Joseph Lyons the prepaid are common, can usually get in writing they won’t charge if you redo with them.

Then for 2 months of November and December I would credit cash (decrease an asset) and debit Prepaid taxes (increase an asset).then for November and December I would debit tax expense (increase an expense) credit prepaid taxes (decrease an asset) The 4% discount would need its own account and I would credit that account for the 4% to make up the difference between the actual bill and the cash paid.There is one more piece. 2022.

Let your imagination run as to what this could pay for; repairs, capital improvements, pre-paids, etc., but also know that any sort of rebate requested must fully disclosed, appear on closing disclosures, be approved by the listing agent, their employing broker, and most of all, by your lender. 

I put 10% down and prepaid all of my PMI at the time of closing through a conventional 30 year mortgage.

As far as prepaid rent (first and last) and security deposit that's one third of a month's total rent.

I'd be requiring a year pre-paid (non-refundable) of the insurance, one year term leases, non-renewable without another year of insurance.... eventually the tenant gets eaten up in fees and has no security deposit coming back at the end.