Number of houses for rent on the market plummet fast till the Jan bounce, then it freezes over in Feb, and we take off in March.

Yes, you are supposed to disclose any information like, pipes freezing, that kind of thing when you sell the property.

We've had a long stretch of below freezing weather recently... 

Due to various freezes they could double in a years time.

The only risk I'd say you run is if for some reason the bank freezes the line.

The tenant can skip getting his account and ride on the winter program and not pay the bill till they get caught and the pipe freeze and you have no idea if they are paying their bills as the Utility companies don't even share info on the status of the account since it is not yours as a land lord. 

Given that they've been open to the weather, your lovely freeze-thaw cycles up in Minnesota may have been pretty unkind.

My bank freezes my debit card when I make 2 deposits within 10 minutes of each other so it is frustrating if I see 2-4 properties that all end at the same time with only 10-20 minutes remaining...The $550 house, I had to wire the $550 as my EMD.

It does everything except at the end when it's time to get the results of the analysis it freezes, it does it sometimes not always. 

Postponing Children Zell also cited reports of a growing number of women freezing their eggs to postpone having children while they pursue their careers.