Someone will have to file the case in court and that does cost a little money. If he is able to have a lawyer do the paperwork, it would cost a couple hundred dollars. If he has a jailhouse lawyer file the papers and mail them from prison, it'll only be seventy-five dollars plus some bags of tuna for the inmate that did the work inside.
https://www.inmateaid.com/ask-the-inmate/will-it-be-easier-for-my-husband-to-file-for-a-divorce-while-he-is.amp#answer
Accepted Answer Date Created: November 23,2015