I have a 2004 chyrsler sebring v6 and recently my fan started not shutting off when i turned the car off and now its killing my battery does anyone have any idea what would make the fan stay running even after the car has been shut off

Check under the hood and see if you have a decal that says fan may turn on after car is turned off. The fan can run for 10-15min after shut-off.
If it's on for only that length of time and it's killing your battery, you may need a new battery.
If it's not turning off at all, open fuse compartment under the hood, take a small rubber mallet and start to tap the relays. There should be one there for the cooling fan. Once you find it, (the fan will turn off when it's tapped) you can exchange the relay for another (of the same part number - like the wiper relay or A/C relay or something) restart car, let it run til hot, and turn off. If fan shuts off within 10-15 minutes, you need a new relay.