Fees will vary from state to state and both the sending and receiving state have to agree to the offender /parolee going to that st ate .Each state has it's own way of doing things .
It is called Interstatecompact
ICAOS: Interstate Commission for Adult Offender Supervision
Your best bet is to consult with a attorneys who practices almost exclusively in parole . Make sure you interview them and find out how successful they are and how much they charge and how the bill you . Always check with the Bar Association in that state to be sure if they are a member of the state and ABA and do not have any problems. you can start by googleing their name
Best of Luck