If I come across a property that I believe has incredible potential and I am able to trademark the business plan, how do I go about presenting this project?

I'm thinking Trademark company with subsidiaries.

It’s awesome for the Smokies where there are a few thousand cabins like mine nearby and macro data for the market matters a lot, but I’m not using it for Outer Banks where there’s a much smaller data set and you can easily use [The Enemy Method] (Trademark) to set more fixed pricing.

I am not a lawyer but when I was looking into it in Illinois I found three steps helpful:1) Check with your states secretary of state they have online tools to search their databases 2) Check the DBAs (Doing business as) this is where a business or partnership takes on a separate/assumed business name.  3) US Trademark Office the USPTO also has their own database checker so you can see that no one has trademarked your name or something too similar. 

In order to protect the name, do I need to trademark the name, put it into an LLC, or some other way?

You need to trademark that! 

You can also pick off your competitors by advertising on their terms (but not using their trademark in your ad).

In the Bay Area it's not uncommon for traditional market rents to be half or less what furnished rentals go for.To keep you from getting jammed up when it comes time to get another mortgage & keep things Fannie Mae Friendly (can I trademark that?)

Had a notion of adding a BP Logo with a qr code to BP profile on business cards, and since it is a registered trademark wondered if the powers that be (Josh) would have any objections.

Copyright is not the issue here, trademarks are.