Water may be leaching out under the basement floor (might be associated with cracks)There are a bunch of little things that are easy to fix (doorbells not working, loose window seals, smoke detector batteries, ect).

I've not installed one yet but when my battery backup pump goes, I am going to install this. https://www.angieslist.com/articles/why-you-should...I also plan to seal my basement before I finish it as a last line of defensehttps://www.radonseal.com/basement-waterproofing.h...I would ask 2-3 waterproofing basement companies to come out and give free quotes, and you can use this as an opportunity to pick their brain as well. 

This has a mechanical key, which is nice, just in case the battery dies.https://www.amazon.com/dp/B00T...

I know prices for solar, wind, batteries, etc. have come down tremendously over the last year, what about a green construction project like this? 

I took my course online with realestateexpress.com It was the cheapest and for $25 more, I purchased a test module.

When they moved out I found they removed the batteries from all the smoke alarms.

Rest up a little, recharge the batteries, spend time doing something you enjoy. 

The only repair I paid for since then was a fuel pump, about $500.It's a BMW 540i, V8, something around 450 HP, the engine control module  prevents speeds over 150 MPH, the interior is black leather and Cocobolo (exotic hardwood), and if you've never driven a BMW, yes there *is* a difference.I get a reak kick out of the fact that I paid *less* than a sensible car lot "deal" on a used Hyundai.Disclaimers: I do all my own maintenance when time/weather/skills allow.

They admitted they were cooking french fries and she is deaf although she fought me to have hearing service dogs that are tinier than my cats...why didn't they alert her to the smoke alarm which is electrically wired, not a battery powered one???

Also how often you change batteries?