Statistically speaking you have greater odd's of being hit by lightning on the same day your mauled by a bear. 

I am also going to move the fireplace to the center of the living room (under the bear skin), and it will be a river rock surround.  

(a) LLC or not, does not matter, the LLC is just a pass thru(b) "STR's aren't occupied nearly as many days ... " - this has no bearing on the STR loop holeWhen did you buy the house and when do you plan on putting your STR into service?

Long post - bear with me please!

Even my garden in my backyard is partially affected, since I mixed in a few bags of fertilizer and soil from Home Depot. 

Investing in real estate is like planting trees, they do not bear shade or fruit in the first few years, if your horizon is 10+ years you will be very happy you took action earlier in life.

ATUs are useful in environmentally sensitive areas or locations that are less suitable for conventional or gravity flow septic systems, such as inappropriate soil conditions where the water table is too high to allow the drain field to operate effectively.It seems likely your property has appreciated more than inflation and selling costs.  

Bear in mind that all Roth Conversions have their own separate 5 year rule with the start date being Jan 1 of the year the conversion was made.

Guarantee there will be bulls and bears but I don't know anyone who can predict when and how much on a consistent basis.  

A few things to keep in mind: check zoning and permitting requirements early, factor in utility hookups and soil/septic feasibility, and always have a buffer for unexpected costs or delays.