We will then, as the units turn over, get rents up a good bit further with additional design improvement renovations and hopefully reno into lower interest rates when they drop or at the very least in 5 years on our 20 year we'll have paid off enough to refi into a smaller loan.That is the only kind of smaller deal we can find in neighborhoods where we want to buy now. 

Furthermore, whole note investments benefit from an additional 0.5% annualized yield and are entitled to a share of any extension fees charged to the borrower."  

I'd focus on deciding what you want to do (flip-high risk, but potentially high return...or large loss; short term rental-more work, but higher return than long term rental; long term rental-less work than the other two, but lower return).Once you've decided which you want to do, then focus on getting the best house to meet your goal. 

that we’ve learned in our 24 years, managing almost 700 doors across the Metro Detroit area, including almost 100 S8 leases:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

They lower taxable income for federal taxes but not for FICA.However, employer contributions made by the S-Corp are not subject to FICA and count as a business expense.Make sure your W-2 correctly reports wages, deferrals, and FICA wages.

I would look at the DSCR loan as the first option.By the way, I suspect you are going to be disappointed by any refi appraisals   ADUs typically appraise poorly   JADUs can lower the property value Vs having the space as part of the primary unit.  

(I know, nothing is certain but just hypothetically) and all cash out loans are not created equal. if you have a lot of equity you can borrow up to 60% with the lowest rate possible, which would be close to a half point lower then borrowing up to 75% loan to value. 

Depreciation lowers taxable income now but is subject to recapture at a maximum 25% rate when the property is sold.

Or we gradually perform high-quality updates for a live-in flip, then roll the equity into a new home.Regarding rental income, we aim to boost income, lower our effective tax rate by generating more low tax-drag income with rental income (since there’s not much we can do to lower out W2 tax bills) and have retirement cash flow.To compare the financial impact over 10-20 years, we want to analyze renting versus flipping.

I am particularly concened about the water meters not being hooked up and potential charges there.