They must use the same depreciation method and convention that was used for the relinquished property.

Are you using other peoples money, hard money, conventional, or your own cash?

I'm definitely thinking of starting off with a conventional BRRR to get the hang of things but still have to somehow pay myself while doing the renos. 

Recently, buyer's agents have to jump immediately, each time a new listing hit, due to such limited inventory, huge competition, and listing agents not placing or honoring offer deadlines. 

25% own money down with 30 year conventional mortgages.

Conventional vs DSCR is the first that comes to mind. 

You should check out conventional mortgage rates/payments vs those for DSR loans.Should also work backwards with NEW property taxes and insurance monthly amounts to determine loan amount that allows cashflow you want.

Specifically, we’ll compare DSCR refinance loans to traditional options, namely bank or conventional loans.

You could also partner on it if you absolutely need to go conventional? 

On a conventional/conforming, there is a requirement with a number of regulations most notable TRID.