Be very careful here, you're treading on thin ice.  If I was a legit borrower looking to get a secured loan, you're the last person I would send my collateral to.  You have no reputation here, and as a borrower there's no guaranty I would get my collateral back after paying the loan.

This wouldn't be the first time someone tried to play "innocent lender" in order to scam a borrower out his collateral.