For the purposes of calculating the limited interest deduction, the total mortgage debt owed would include both the individual mortgage on Unit A and the owner's share of the underlying mortgage.So, the total mortgage debt owed would be $800,000 (individual mortgage) + $200,000 (owner's share of underlying mortgage) = $1,000,000.Therefore, the owner would be limited to deducting mortgage interest based on this total mortgage debt of $1,000,000, not just the individual mortgage.Thus, the deduction for mortgage interest would be calculated as:($750,000 / $1,000,000) * $40,000 = $30,000Therefore, in this scenario, the owner would be able to deduct $30,000 of mortgage interest for federal income tax purposes.

This is based on the future reservation of my rental business (I guess I can pull a proof of income from Airbnb).

While our initial down payment was modest, our loan to value is estimated at 71% based on current home value.

Currently I am looking at "Your In Town Home" , "Vision Realty Management" just based on the google reviews but would love to get some ideas based on anyone else's personal experience.

Below is a list of the states and their requirements for prepay AL Alabama Yes No restrictions None Refinance or saleAK Alaska No N/A N/A N/AAR Arkansas Yes No restrictions None Refinance or saleAZ Arizona Yes No restrictions None Refinance or saleCA California Yes No restrictions None Refinance or saleCO Colorado Yes No restrictions None Refinance or saleCT Connecticut Yes No restrictions None Refinance or saleDC District of Columbia Yes 2 months interest on prepaid amt that exceeds 1/3 of original UPB36 Months Refinance or saleDE Delaware Yes No restrictions None Refinance or saleFL Florida Yes No restrictions None Refinance or saleGA Georgia Yes No restrictions None Refinance or saleHI Hawaii Yes No restrictions None Refinance or saleIA Iowa Yes No restrictions None Refinance or saleID Idaho Yes No restrictions None Refinance or saleIL Illinois Yes No restrictions None Refinance or sale Borrower must be corporation if interest rate is > 8%IN Indiana Yes No restrictions None Refinance or saleKS Kansas Yes No restrictions 6 months Refinance or saleKY Kentucky Yes No restrictions None Refinance or saleLA Louisiana Yes No restrictions None Refinance or saleMA Massachusetts Yes No restrictions 36 Months Refinance or saleMD Maryland Yes No restrictions 36 Months Refinance or saleME Maine Yes No restrictions None Refinance or saleMI Michigan Yes 1% of amount prepaid 36 Months Refinance or saleMN Minnesota Yes Lesser of (i) 2% of UPB or (ii) 60 days of interest 42 Months Refinance only PPP restrictions only apply to loans within conforming limits MO Missouri Yes No restrictions None Refinance or saleMS Mississippi Yes 5% of UPB if prepaid in months 1-124% of UPB if prepaid in months 13-243% of UPB if prepaid in months 25-362% of UPB if prepaid in months 37-481% of UPB if prepaid in months 49-6060 Months Refinance or saleMT Montana Yes No restrictions None Refinance or saleNC North Carolina Yes No restrictions None Refinance or saleND North Dakota Yes No restrictions None Refinance or saleNE Nebraska Yes No restrictions None Refinance or saleNH New Hampshire Yes No restrictions Refinance or saleNJ New Jersey Yes No restrictions None Refinance or sale Borrower must be corporation if interest rate is > 6%NM New Mexico No N/A N/A N/ANV Nevada Yes No restrictions None Refinance or saleNY New York Yes No restrictions None Refinance or saleOH Ohio Yes 1% of original UPB 60 Months Refinance or saleOK Oklahoma Yes No restrictions None Refinance or saleOR Oregon Yes No restrictions None Refinance or salePA Pennsylvania Yes No restrictions None Refinance or sale Not permitted for loans less than base amount ($312,178)RI Rhode Island Yes 1-4 Purchase: 2% during first year only.Otherwise, no restrictionsPurchase: 12 months Refinance: 60 monthsSC South Carolina Yes No restrictions None Refinance or saleSD South Dakota Yes No restrictions None Refinance or saleTN Tennessee Yes No restrictions None Refinance or saleTX Texas Yes No restrictions None Refinance or saleUT Utah Yes No restrictions None Refinance or saleVA Virginia Yes No restrictions None Refinance or saleVT Vermont No N/A N/A N/AWA Washington Yes No restrictions PPP on ARM cannot extend beyond 60 days prior to the initial rate change dateRefinance or saleWI Wisconsin Yes No restrictions None Refinance or sale No PPP permitted on ARMSWV West Virginia Yes No restrictions None Refinance or saleWY Wyoming Yes No restrictions None Refinance or sale

I would look into these guys https://www.submetersolutions.com/If that doesn't work, just split the usage based off square footage and charge the tenants in proportion to that - not 100%  accurate but good enough.

Someone suggested at shower receptacle for the base and subway tile the way up.

However, this metric varies based on individual investment goals, market conditions, and property types.

It can vary widely based on just the local area.

We can't and shouldn't attempt to compete at that game.