Would lease option trigger due on sale?

[Jack Ni]

Hi, I did a 25 year lease option with a seller. The lease is not recorded. But if the bank finds out that he did a lease option with me, can the bank call the loan due (due on sale)? I think I read somewhere that you can do a 3 year lease option and it won’t trigger due on sale. Not really sure. Please help me out if you have any knowledge about this.