It depends on the Term of the Loan -- 10 or 20 years normal.

For a year as example; It is at very least usury if an unlicensed lender, and in respect to any regulated loan -- deemed unconscionable and forfeit in most courts.

However, it is a relatively small amount to risk so offer a % of the profit as a joint venture. If there is no profit to be made don't take the money.