To get some insight into the development process, take a look at this thread I am writing, walking through an actual multi-family development project in SoCal: Life Cycle of a CA MF Development ProjectI am an offer of help, feel free to post questions here or you can send DM. 

I am an industrial mortgage broker and I would be happy to walk you through available programs and pricing.You said this is a single, sticky tenant? 

Not easy to find a strong STR investment that cash flows down in our market with the low inventory and the number of competitive offers - Bravo!

It's not a typical thing so doubt many recommendations will come through and you'll have to find them.

It's REALLY hard for owners to cash flow paying a PM at all, much less 25%+.  

How much is the property, and what cash flow are you seeing?

To avoid going through the same poor experience, keep reading.Even if someone gives you a referral here, do NOT make the mistake of assuming that the PMC will meet your expectations, just because they met the expectations of the referral source.In our experience, the #1 mistake owners make when selecting a Property Management Company (PMC) is ASSUMING instead of CONFIRMING.It's often a case of not doing enough research, as they don't know what they don't know!

Podcasters that does house walk throughs will sometimes say, "if this Floorplan isn't available in your city/state"  blah blah blah.

A super ball number to get you going would be at least $190/SF-$220/sf ish... to figure out square footage it's probably best to connect with a Chicago architect like @Samuel Pavlovcik or @Prashanth Mahakali both can talk through the zoning and plan development process.

Would simply owning these properties through an LLC (with an associated business account) be enough to benefit from this?