I look at properties all the time and I see the condition of many properties around here that are "professionally" managed where the repairs are unbelievably shoddy, the cheapest indoor/outdoor carpet is used for flooring, they often have galvanized plumbing, and still have sections of knob and tube electrical. 

What was the temperature that day?  

Two cautions - dump the tank's contents outdoors. 

If it has centralized heat already, why not set the heat at a constant temperature, say 65 in the winter, and install baseboard heaters in each unit so the tenants can up the heat to their liking, on their own dime.

There are so many awesome outlets for outdoor family fun.

Swap out all of your fixtures for low flow units and lock up your outdoor faucets.

. - Jan 17 mother of same tenant tells us there is moisture in her sons bedroom following 2 weeks of -20 below temperatures.

In addition, he represents property owners in connection with condemnation proceedings, real property tax appeals, and zoning and land use issues.Marvin has also developed an expertise in outdoor advertising and has been involved for many years in issues critical to that industry.

The whole area here is planned around outdoor recreation, with winter and summer sports everywhere.

Maybe because of the extreme temperatures here?