Replacing interior doors

[Nick Marsillo]

Has anyone ever replaced interior doors?  I have a condo I'm currently living in and want to rent out and know I need to replace about 8 interior doors.  Not sure if this is a ton of work to do it myself or if I should hire someone.  Has anyone ever hired this out?  I've been told that hanging doors is a bit tricky and would like to find someone has experience, but not sure if anyone specializes in just hanging doors or who to call.  I'm in Morris County.