Post-Conviction Relief: Who Hires Writ of Habeas Corpus Counsel

I am a law student in Texas doing a research project. In your experience, who “hires” counsel to perform a writ of habeas corpus? An offender, offender’s significant others, offender’s family members? If more than one, what percentage of each? Thank you.

Post-Conviction Relief: Who Hires Writ of Habeas Corpus Counsel