So when the house was taken by new owners, they had no legal obligation to tell us about the fact they were gonna remove something of ours form the household even though the previous landlord gave us a window or even give us a new window or warning?
Yep.

I believe that's how I explained it.

They're allowed to purchase a home, and simply do whatever they want with the belongings on the property even though we had paid rent that allowed us to stay in the house until the end of the month?
Yep.

That, too.

As I wrote.

New owners see an abandoned, inoperable, unregistered vehicle (numerous statute and code violations) with no knowledge of you nor any obligation to you at all.

If you want to go a little deeper into this, they had every right to tow and you had no "legal" right to leave it there in an inoperable and unregistered condition regardless of what the former property told you.

You don't have to take my word for it. You are free to sue somebody in small claims court and put it to the test.