Highly unlikely any judge would require a federal inmate be present at a divorce trial. If the judge wants to hear from the inmate, it would be a telephonic communication request. The BOP is known to allow inmates, as a party to a civil lawsuit, make a call(s) to their lawyer to convey how they would like to be represented.
https://www.inmateaid.com/ask-the-inmate/lompoc-has-an-inmate-that-is-a-party-to-a-california-divorce-action-trial-is.amp#answer
Accepted Answer Date Created: August 20,2016