@Stuart Udis has some very solid, and in some cases contrarian, feedback on asset protections and entity structures for real estate investors.  

Extremely solid advice.

Quote from @Brandon Croucier: They’re going to be on the loan.I highly recommend just including someone with solid credit in your LLC.

To qualify for debt, lenders generally look at net worth (aim for the loan amount), liquidity (10% post-close), experience, and a solid credit score (ideally 680+).

Educate yourself on the local market, network with other investors and agents, and always have a solid plan in place before making any investments. 

When investing OOS, especially in high cash-flow markets, its important to work with a solid team who understands the area. 

For BRRRRs, you'll need to have a solid team.

You'll spend a lot of time (sounds like you may have already) spinning your wheels in trying to find the right lender, whereas a solid broker can pair you up with the right fit right away and get your project moving. 

Not sure what the layout looks like or location - but in a solid location, which I'm assuming since it's an STR, you should be able to in the ball north of $800-1000 per room and even more so for the rooms with private baths.

It sounds like you’re on a solid path!