@Zach Schwarzmiller I'm thinking of the area immediately surrounding Snoqualmie Pass ski area, or Alpentaal. 

There’s no stipulation that the taxes can be voted to a pre-referendum.

Trying to hypothesize a future HELOC or Refinance became too far fetched with guessing on property value, future APR, taxes, etc.

@Claudio Garcia ZunigaBe careful of scam website when applying for a EIN online.Once you open up business accounts, apply for a credit card - I recommend the Chase Business Ink Unlimited. 0% APR for 12+ months.

I'm big in the SCAD area usually it's slow in Apr-May, and my ramping is June/July/Aug.

My girlfriend and I are interested in buying into the upper Michigan STR markets (Traverse City, Charlevoix, Petoskey, Bay Harbor, etc), hoping we can take advantage of the hot vacation rental market up there in the summers and the popular ski slopes for the winters. 

A totally managed vacation rental - think ski condo in a central managed destination. 

I think that might have taken a year to build.When you get a pre-approved for a regular purchase, you can get a locked in interest rate, but it is only good for so long (I can't remember, but google says 90-120 days.I can't remember if they show a chart of payments at different interest rates, but there are online calculators where you can get an idea. 

You are way out ahead of your skis here.First, how are you house hacking both since you can only live at one?

Your risk of Fair Housing accusations drops when you can refer everyone to a pre-set qualification list.