So, the general numbers are like this:
Purchase Price: $635,000.00
Purchase Closing Costs: $6,350.00 (I'm not even sure how this applies in private seller financing, so any insight to this would be extremely helpful)
Estimated Repair Costs: $10,000.00 (This is just set aside for the unexpected up front issue)
Total Cost of Project: $651,350.00
After Repair Value $635,000.00
Down Payment: $10,000.00 (He doesn't seem to have any big hobbies or desires for purchase, so I don't think he has much reason for any big up front payout)
Loan Amount: $625,000.00
Amortized Over: 30 years (I'd expect the note/his will would write in to transition payment of this over to his daughter as just a nice steady cash flow that won't require any headache unlike a property sale during execution of a will)
Loan Interest Rate: 4.000% (basically right at inflation)
Monthly P&I: $2,983.85
Unit 1 Rent: $1,600
Unit 2 Rent: $1,600
ADU Rent: $1,000
Vacancy: 5% ($210/mo)
CapEx: 5% ($210/mo)
Repairs and Maintenance: 5% ($210/mo)
Insurance: 2% ($80/mo)
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First year annual CF: -$367, ROI: -1.39%
But by year 2 annual CF: $1,350, ROI: 5.12%
and by 5 years in annual CF: $6,960, ROI: 26.42%
....what am I doing wrong? What assumptions are unrealistic/unreasonable?