Ownership Of Land With Bank Loan

Bank loans appear to be available at very favorable rates here, and perhaps others have considered the following: purchase improved property with Thai spouse holding full title, say 85 percent bank financing with remaining say 20 down payment and fees paid by non-thai partner. Recordable lease will not be allowed by the bank, but a proper loan or contract for some division of earnings (if the property is rented out) and equitable disposal of capital gains (ie reimbursement of money advanced) on possible sale of property seems possible. This allows for limited exposure of non-thai assets, prevents use of the land as collateral, and maybe offers a fair chance of recovery of investment in case of a breakup.

Am I missing something here? I've never seen this fairly simple idea discussed in the forum.