Conventional Loan How did you add value to the deal?

My strategy is to use HELOC to cover down payment and convention loan to cover the rest of the mortgage.

For almost any kind of permanent rental/investment property financing (whether Conventional, DSCR, or local bank), you are going to need a decent credit score to qualify.

We let them rep us on the buy & resale once it's renovated/built, and they are happy to try and work with us on a deal where the seller wants an all-cash, quick close, or the home won't work for conventional lenders/end-buyers, etc.It is hard to find 60-65% of ARV deals, but that's why we are still around!

I cannot qualify for traditional conventional for multiple reasons but the over 200 to 1 debt to income ratio is a primary reason.  

I've tried conventional and DSCR (I have no landlord experience yet, so that disqualified me from 1 lender).

If the loan is conventional, it is likely serviced by a mortgage servicer and you will have difficulty getting in contact with the actual investor who owns the loan.

9) adding multiple ADUs or adding an ADU to a quad looses F/F conventional financing.

That's missing the forest for the trees, but you do need to manage cash flow because if you're buying conventional you'll come across DTI issues soon and if you're buying nonQM it needs to be 1:1 ratio at minimum to be qualified without unfavorable terms. 

Conventional financing.