Hey dude, sounds bad,
IMHO, get in touch with a local Church, just call up and ask for a Pastor or Senior Pastor. Let them know of the situation. I myself am Christian and have been overseas on mission trips to the Philippines, where we have experienced all this kinda stuff...
Im not trying to Bible Bash you heh , but i guess im just sharing with you what i think would work. IMHO, don't mess around with clairvoyants and witch doctors, these things can possibly do the reverse of what you want.
Will be interesting to see how it pans out. If you can't get in touch with a pastor let me know, although my church is located way out in the SE burbs.
Good luck with it all.
Cheers
Matt