I’ve run numbers in detail for friends who’ve been looking to get into identical rentals as I manage: the numbers don’t work, even self managed or when transitioned to MTR or LTR.

I'm in Nigeria 🇳🇬, so I'll need an account that I can open with my country details. 

.- don't get too hung up on the details here. if you're underwriting 25 similar deals in one market and they don't make sense, you have to change your plan somehow. don't keep looking for something that's not penciling out. do what you have to do to tweak your buy box & be ale to make solid offers within the next 2 weeks!

Here's what auction.com said about the transaction details: "Buyer will not be charged a Buyer's Premium for this property.If you are the Winning Bidder, an Earnest Money Deposit of 5% of the total purchase price or $2,500 (whichever is greater) is required.Buyer may receive a Special Warranty Deed or equivalent if Buyer is able to purchase title insurance without delaying the closing (title fees typically cost between $500 and $1500 and are based on the purchase price of the property).

Can you give me the details of which closing costs can I immediately deduct?

I would absolutely pay an extra 1% on a loan with no personal guarantee than put all of my net worth at risk. 

Your plan seems super detailed, especially with all the specific R-values and materials you're considering.

The principal and interest payment will remain the same, but the loan payoff date will be escalated as you make extra payments towards the principal.The details of your monthly payments should be available on your monthly mortgage statement as it lists the principal, interest, taxes/insurance escrow, and PMI paid that month.

If, in principle, I can make it so that I have extra income left over after deducting all expenses, I have a positive cash flow.

It really depends on what you want; if you like having steady, long-term tenants and don't mind some extra work, Section 8 could work.