This environment could allow you to leverage your cash position to negotiate better deals and acquire properties at a discount, positioning yourself advantageously for future appreciation when the market balances out.

There are certainly outside cases, but you wouldn't want your business model to focus on that.

Commit to dedicating 12-24 months of your time to learn the ins and outs of the business.

Turnkey generally don't exist and value add generally makes no sense from a business and financing overview.3.

Or Business LOC?

Along with my 2 business partners I buy & build small micro-resorts and unique vacation rentals across the Appalachian region.

It's an unnecessary expense to operate the business.

Sounds like a single family home with an attached garage which to me sounds like it could be R-1 single family only residential where you are unlikely to be allowed to add additional units unless you're in a state  forcing municipalities to allow ADUs of some sort.

Would it be under the business tax id number which would be brand new (so no history yet) or would it be through me personally through my own credit report/history?

I had it customized to my business with a developer.