So, to get the required R-value you might have to either fur the walls out creating a deeper void and making the rooms smaller OR use spray foam which has a higher R-value per inch both of which are much more expensive propositions!

Another idea would be to sell their current home, get some equity out and purchase a much cheaper 55+ only community residence and transfer their property tax basis using proposition 60.

Not happening.Valid proposition.

I hear there are some nice hotels which do all that for you :) seriously it’s gotten ridiculous and endangering the value proposition

Understanding market demand, especially for unique rental propositions like tiny homes, and any zoning or regulatory challenges in the area, is also vital.

Another thing I would be wary of is the new propositions on the ballots this year.

At the end of the day the buyer of such product is the one that's losing proposition/their advantage in the long run.

Account Closed splitting the meters isn't a cheap proposition, especially if the house shares circuits.

Short term rentals in New Haven is a losing value proposition better to target the Hartford market

That is a much riskier proposition.