Who caught the realtor? You? What facts? What is the "writing" in question, and what does "official form" mean?
We did on several issues
Who left this note? I'll note that this is the second sentence in a row at the start of your post that lacks a subject. It's best not to leave it to your reader to guess about stuff like this. Also, what did this note say?
The realtor left the note
What documents, and why did you sign them without permission?
The realtor signed several documents without our/my permission including an agreement of sale. He made showing appointments without telling us but they were approved on the scheduling service website. All showings were supposed to be approved not just to get out of the house but not be there when potential buyers are which happenend on more than one occassion. They say the owner shouldn't be present when house buyers are.
Without a coherent description of what happened, it is impossible to say with any certainty.