Agree with Randy. Keep in mind that the reason for a lender to place a lien on the property is to help assure that if the borrower does not repay the lender then the lender can foreclose and keep (or sell) the property on which they have the lien. So, if the lender is somehow able to place a lien only on the land but not the improvements, upon foreclosure they will gain title only to the land, not the building. The borrower will still own the building - in effect the the lender and borrower will become co-owners of the entire property. The bank will have no end of "fun" trying to do anything with the property to recover their loss on the loan without the full cooperation of the borrower on whom they foreclosed. [In short, a very bad idea, IMHO.]
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Just my opinion, I could be wrong. - Dennis Miller