That's an awesome way to put it, something of a "pay it forward" mentality and I'll be only too happy to do so (and I definitely do plan to stick around - good read!).

I'm managing an STR listing as well as a longer stay listing (30 day +).Both listings went live mid-May, so we're about a couple weeks past the 1 month boost period.My main question is simply what good stats should look like, I really have no benchmark to compare to.Our STR stats have dipped noticeably.

What remains to be determined is: whether it's the best route long-term (remember the deduction is a one-year boost, and then you're back to where you started, and actually worse).

We plan to add a 2nd bathroom to boost functional value.

Find out what's going on first, and then when you make your decision, make sure you're in a position, mentally and financially, to see it through. if I'm not mistaken, this is your first eviction situation.

Excellent mental approach.

There is an immediate boost of ~$1000/month in savings plus a future rental. 

That said, my properties cash flow numbers worked out when I bought them, and would've continued to even if the market had stayed flat and I'll only continue to buy with that mentality. 

The motivation of an owner to use a Co-Host is to boost their occupancy from a mismanaged property, and also to be more hands off which many people find value in.

Of course that is better but only you can say what is good for you.Frankly, you are trying to be a mental health provider when you are a landlord.