Is there any protection for the tenant against the landlord until moved out the unit?

Call the police, but the time will likely expire before they are able to do anything about it. And stop answering the phone, easy answer.

Can I file a lawsuit if possible, for removing me that night out of the house without an eviction? & cause I wasnt on the lease?

First of all in order to be considered a legal tenant you have to pay rent, which you had no money. So you weren't a tenant but rather a guest as...

Non paying tenant moving out.

I would file the eviction and not risk it. If you dont, and tenant claims he/she hasn't actually moved out, then you are in violation of 83.67 and...

Is there anything a court can do in an event of an eviction?

Unlikely the court will do anything. The courthouse really meant show up and explain it to the judge and maybe he/she will have sympathy. But...

Do I need to continue to pay my landlord the full rent amount or can I legally pay her half until she has the A/C unit replaced?

You cannot just pay half rent. You need to send a 7 day notice before you can do anything. If you only pay half rent then landlord can evict you....

What are my options? Do I have to leave the house as soon as it forecloses?

You get 30 days from the date the property auctions off to vacate by law. FL Statute 83.561

The addendum modifies the contract and rent is late on the 3rd.

The issue is you are in fact in violation of the lease first by subletting your unit via airbnb. Nearly all leases out there at least require...

I was faked up on zanaks and I accidentely gave my landlord $5000 instead of $500 now he wont give me back $4500

Life lesson to not do drugs. You have no evidence of giving the cash unless some third party was there. Absent that you have no evidence to sue.

I think she has other intentions. How is this done?

If it sounds fishy it probably is. I would not do this period.