Yoi! Well, first let me say that this is not a title insurance matter unless the title agent or their representative assisted in the forged signing. If that's the case, you may wish to contact the title company.
I personally think your best bet is to pursue the matter under truth in lending rules and you should seek the assistance of an attorney. Your attorney can look into your right to cancel the transaction or other options.
If you don't want to hire an attorney you might want to raise the case with your state attorney general.