You simply can't effectively work around a spider nest of wiring, piping, ducting, with cramped space to really address vapor installation plus new passive ventilation modification.  

Not sure about others but with Google Nest I'm almost 100% certain there's no way they can override the settings/setup without having either the password or access to the smartphone app.

This plan will give you total control over how you invest your retirement nest egg and would be much more superior to an IRA. 

We've taken our CA nest egg and reinvested in TX cashflow properties.  

They will then come out for any other issues like a hornets nest or an infestation that needs treatment at no additional cost.

What does your state/county say about hability standards and temperature because a nest thermostat may help you all pay utilities if they are in your name, don't go below or under the legal limit and don't risk your pipes. 

To further that thought, I would consider where in your investment portfolio allocation this sits in the overall nest egg, but reading between the lines, it sounds like this is not cash you need anytime soon but can allocate toward long-term investment, in which you can be more aggressive. 

On the SFR stuff you can line those up very easy and I am sure the  Sub to boys can and will now figure this out to further feather their income nest with the clients  instead of a fee you will now also figure out how to take a long term participation in the deal and you could do that with a second behind the sub to loan that your clients are taking on be super simple.. just talk to an attorney and have them craft one specifically for you..

While Rhode Island Energy will subsidize smaller improvements (e.g. a new Google Nest Thermostat is $75 off), RI and RISE can either directly subsidize or provide you with the info to subsidize new windows, solar, blow-in insulation and more.

My investing goals are to have a nest egg for retirement.