so if I buy at a 5 cap and hold it for 5 years then my exit cap rate would start at 5.75 and then I tweak it based of specific factors of the property market and location.  

We are very "active managers" meaning that we do a lot of the fixing/repairing ourselves, sometimes we do cleanings (I would say less than 5% of the time), we listen to our guests recommendations and take action, and we are constantly on the STR platforms tweaking everything, from pricing, to descriptions, to check-in/check-out process, to systems, to guest interaction. 

I do not request funds from folks or pitch investment “opportunities” via Instagram.My Instagram has not been hacked; rather fake accounts that are subtle tweaks of my name keep popping up.

Are there any creative “tweaks” to this type of structure that I am not thinking about that could increase the cash flow?

I've heard that slightly tweaking your posting (either your description or even just changing the order of the pictures around) can help with that!

I would try to lay out the situation as best as possible to a lawyer that specializes in commercial leases in your area that can help you build out a template that you can tweak for the different type of tenant (retail, maker, storage).Things to keep in mind are hours they are allowed in or must be open, noise/music, exact responsibilities for anything that could be considered a liability (snow removal near their entrance, tripping hazards just outside their exact space, etc), specify their insurance requirements, etc.

If not, these options would still apply but would need to be tweaked a bit.1.

Landscaping renovation, front walkway, lots of interior touches and tweaks.

They can write up the contract once and you can use it as many times as you want with a few tweaks each time. 

You can tweak this around any number of ways.