Mrs Langtrees - the lucky lender can’t say they own Langtrees for 4 years!
The lucky guy can say he has Recourse over the security arrangement - the property offered by you.
While your offer sounds great for the lender. I’d suggest you are paying a double risk premium - offering more than commercial interest rate and second, full recourse on your property that is being used as security.
I would recommending offering a higher interest rate (as you have said) and keep your powder dry on the property as full recourse. You should negotiate, in event of default (following a reasonable cure period), that the property is sold, the outstanding loan and reasonable legal costs are paid, and the balance is returned to you.