Boot includes any cash retained or the difference if the replacement property is of lower value than the relinquished property.

We replaced what we would have fixed if we were buying the house ourselves.

I haven't sold yet, I've been analyzing property to get a head start on the 45-day timeline of identifying the potential replacement property (and because I enjoy analyzing property). 

Being an agent will take time to replace your income, 1-2 years.

One of them hired a landscape guy, well, the landscape guy never came so I was paying $140 per month for nothing for about 7 months.The other property manager didn't tell the tenants they were responsible to replace the ac filter, that bill was $1000 to replace the AC fan motor.I am really afraid of blowing off the money.

Just replace and move on. install lights. 

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

One golden rule I follow,if it takes a long time to fix/replace when it breaks, don't buy a cheap one.Imagine, this thing breaks in the middle of your peak season and the people who can come out to rebuild are 2 weeks out....It takes at least a day or two to build something like this even if you are super skilled.

Replace it with a normal fridge.

And buy 2 replacement properties.1.