But occasionally we have issues and tenants need to be asked to leave or just decide to disappear in the middle of winter and it sucks.The worst part is I find the quality of tenant interested or willing to move this time of year isn't the greatest either - often times there is a reason they have to move right now since most landlords don't like ending leases this time of year.Either lower your rent or just hang in there.

If it has a good review history, there probably isn't any issues with the place.

Now, if you do not use a PMS and only have a few properties or only operate on Airbnb that’s a non-issue.

Better than underground homes which have issues with moisture etc.

Today I had a heater issue and snow company that was late handling commercial before residential so we ended up clearing it.Open to each option.

Zoning issues?

There's a good chance the issue(s) you face has already been discussed and answered.Ask questions in the appropriate forum.

Its good to see that there are no issues at this point. 

I ran into the same issue.

Then interview them.Now, let's look at your issues:1) How did replacing a toilet result in a burst pipe and flood?