The batteries end up costing more than the device though  

Everything sounds so good until battery dies.

According to the Tenant Landlord Act if there is a health concern the rent would have to be abated, meaning that the tenant has to move out until it is repaired and does not have to pay rent.What if you didn't have patio screens?

One of those inherited tenants opened it (which anyone can do- changing battery, etc.) and crossed the wires so that the boiler would go continuously.

This works like a cash out refi loan but its really a purchase loan.For all three options above :- Buying in the name of an LLC adds an additional issue or risk (Its a new rule and not applicable to me so check into it with your broker)- Condos and HOAs could prevent approvals if the health of the HOA is questionable or if there are several Rentals in the community already, existing lawsuits, budget concerns, or too many units owned by the same entity. - Ask your mortgage broker to verify your refi plan before you go ahead and buy anything you plan to refi.  

I agree with @Ronald Rohde, it sounds like simple battery Schlage keypad deadbolt locks would be a good fit. 

I would say it's pretty strong considering the 2 colleges (UF and Santa Fe) along with the 2 large hospitals (North Florida & UF Health). 

Unless 2008-2009 this was not caused by some underlying abuse of the system and it is a global health issue.

For example, I used to read many articles on Mens Health/Fitness online as well as through their magazines and I have learned and implemented their many suggestions on what to eat, variations on known workouts and correcting my form.

Their health worsens, they get careless or complacent.