Rental cash-out refi options with "just ok" credit

[John Ford]

My current home has $154k balance on my mortgage and would conservatively appraise at $300k.

I'm closing on a new home next month that I'll be moving into and I plan to put my current home on the rental market for $1800/mo.

What I would *like* to do is do a cash-out refi on the (soon-to-be) rental house and either do a flip to raise more cash, or possibly go right into a buy and hold rental deal using the BRRRR method. My ultimate goal is to BRRR into 5 properties over the next two years.

My sticking point is my credit score. My middle score is currently 652. And that'll take a bit of a dip for a while once I close on the new house, I'm sure. Even without rental income, my DTI will be about .25 and once the rental is seasoned, will be about .12. I keep seeing things saying you have to have "excellent" credit in the 700s to do a cash-out refi on a rental. Is that really the case? Will the low DTI help me at all? If not, what other options are available to me to leverage the rental to get cash without selling?
Thanks!