I'm aware that this will not fix your problem, but it may deter tenants from leaving windows open and could help you from losing as much money if the tenant decides to come good for it.You could also rent propane heaters with a pilot light or a battery starter when you have a vacant unit under construction in winter.

The guy who looked at it thought it might be the control module.

Report all leaks immediately, as they can become a very big problem very quickly.Faucets/knobs: Faucets and knobs can break easily if not handled properly.Broken windows, blinds, doors, glass, locks, or any other damage caused directly/indirectly by you or your guests.Light bulbs: These are your responsibility to replace.Batteries: It is your responsibility to keep your smoke detector and carbon monoxide detector in working order by replacing the batteries on a regular schedule.

I own a copy of 2015 QB Premier.I learn best via a reference book, not video courses or learning modules.

@Joseph England @Ned Carey I'm started the introduction to real estate modules on BP. and after going to read the guide after.

We use Buildium for rental management but it also has different modules for screening, accepting rents, adding maintenance tickets! 

Charles, Just because you bought the program, and never viewed more than the initial training module, doesn't mean it can't help folks that actually do want to take action.

If I'm reading this right, you need to change the batteries in your calculator.$33,000   Cost to Buy$14,000   Repairs$47,000   Total Cost$75,000   ARV$60,000   80% ARV (Refi loan)$47,000   Cash in$13,000   Cash OUT (as in profit built into the loan)You're not upside down.  

An Example addendum I use for Florida a Tenant friendly state "Security Deposits and Advance Rent, Security Deposit is Not for Last Month's rent, My ability to inspect the property, Smoke Detector battery maintenance, Mold (Tenant will use heat and A\C to prevent Mold). 

Ace A. on #1, there are smoke detectors that have 10-year batteries.