Apostrophe s

Wow eric, I'm impressed by the determination of you esl fellas. While I believe the convention in legalize might omit such punctuation, in a purely technical sense you might need one at both stations

Thanks. So, it is acceptable to say Defendant, JOHN DOE's, Motion to Continue Trial?

Yes. In fact it is not just acceptable, it is mandatory. In constructions such as "the defendant, John Doe", and when using compound nouns, phrases, etc, e.g: attorney at law, Mr Brown of New York, John White Junior, Mary Jones, the writer, the apostrophe and s is added to the element nearest the object possessed or connected.

The defendant, John Doe's motion
The attorney at law's fee
John White Junior's book
Mr Brown of New York's wife
Mary Jones, the writer's husband

But note:

The cat's owner's wife's mother

Very helpful! Thank you.