Sounds like you already know this, but I see it with new investors here in Colorado, coming in all hot, excited to retire by age 40 and then are crippled by that first step. 

I come from a data science background, so I'm accustomed to creating models to derive the incremental ROI of each variable.I hear some people saying "get the $10,000 hot tub", and I get that, especially if it's a "table stake" that your property needs just to be considered by guests.However, when thinking about less standard amenities, like putting greens, gaming rooms, billiard tables, pool toys, etc. what tools or methods do y'all use to evaluate if a given idea will deliver a positive ROI?

Check out Milwaukee, WI the water is warm and the market is hot :)

I was more interested in the duplex for the long-term cause I believe its in a great location and my RE agent told me that area is a hot spot.

We have to have inspections which means any hot water heater has to be to code and has to be permitted.

When AirBnB first got hot in 2014 I used to sublease my rented 1/1 bungalow in Venice Beach when I traveled.

I loved getting the cold winter air come in dring a hot shower. 

This is probably not much of a hot lead because they're not in real distress and they're likely just unrealistic with what a cash offer will be.

With a private pool, a private hot tub, and a pool table of their own. 

I feel that if I went over there hot headed and demanded him out then there was a risk he could damage the property further.