My name is XXXXX XXXXX I'd be happy to answer your questions today. I'm sorry to hear that this happened.
First, once an attorney has entered an appearance in a case, he can only withdraw with the judge's permission. So, he should file a Motion to Withdraw before he can stop acting as your lawyer. To do otherwise is a violation of the rules of professional conduct.
Second, a deposition can be canceled by the party that scheduled it just be sending a letter or email saying "It's canceled" or even a phone call. The subpeona is a court order to appear, but when the person who issued it says "nevermind," then that's usually enough - but most people would ask for it in writing to avoid being held in contempt of court. An opposing party or the witness would have to file a Motion to Quash, but not the party that scheduled it. Still, if a person cancels his own deposition, he would have to tell the witness and opposing counsel.
If your witnesses haven't been told that the deposition was canceled, then it sounds like it's going to proceed. Telling you that a deposition is canceled when it isn't is also arguably a violation of Rule 3-500
, which requires that an attorney keep a client reasonably informed of what is going on in the case.
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