396. Mortgagee's rights as regards value of property.

As regards the value of the property itself, the mortgagee's rights possibly depend to some extent upon the circumstance that the mortgagor while in possession is a quasi-tenant1, but, more substantially, they depend on the general principle that the mortgagee is entitled to have the security kept unimpaired. Hence, the mortgagor must not deal with the property so as to diminish its value