Anyone can visit an inmate provided they do not have a felony on their record and are on the approved visitation list. If a family member has a felony, they can oftentimes get a special approval from the warden (as long as they are not on the same case as the inmate).
https://www.inmateaid.com/ask-the-inmate/who-can-visit-inmates-family-members-friends-or-whom.amp#answer
Accepted Answer Date Created: December 31,2015