I am changing my television and internet service and it dawned on me that it will cost no more to me to provide tv service and internet(wireless) to them.

You may also consider a small wireless alarm w/motion sensor. 

I'm a software developer and he's a business analyst at Verizon Wireless.

Install a wireless camera system and stream to video to your phone

They offer some type wireless RF sensor that can be monitored from across the country. 

Get out of debt, cancel cable, trade in an unlimited data cell phone plan for a Wifi based plan from someone like Republic Wireless, Dial your heat back 2 degrees and put a hoody on, dial the AC back this summer,....you get the idea.

Check to see if you are able to use wireless interconnected detectors in-lieu of wired interconnect.  

You should have guest accounts that give them access to the wifi but not the ability to change the network name, password or wireless security.

You can get can get back landline, wireless, and email address contract information to contact them that way as well.

NEIGHBORHOOD, AREA AND PROPERTY CONDITIONS: Neighborhood or area conditions, including Agricultural Use Restrictions pursuant to the Williamson Act (Government Code §§51200-51295), Right To Farm Laws (Civil Code §3482.5 and §3482.6),schools, proximity and adequacy of law enforcement, crime statistics, the proximity of registered felons or offenders, fire protection, other government services, availability, adequacy and cost of any speed-wired, wireless internet connections or other telecommunications or other technology services and installations, proximity to commercial, industrial or agricultural activities, existing and proposed transportation, construction and development that may affect noise, view, or traffic, airport noise, noise or odor from any source, abandoned mining operations on the Property, wild and domestic animals, other nuisances, hazards, or circumstances, protected species, wetland properties, botanical diseases, historic or other governmentally protected sites or improvements, cemeteries, facilities and condition of common areas of common interest subdivisions, and possible lack of compliance with any governing documents or Homeowners' Association requirements, conditions and influences of significance to certain cultures and/or religions, and personal needs,requirements and preferences of Buyer.Things I'd suggest including is investigation of services and feasibility of connection to public services specifically.