Nießbrauch is a usufruct: a right, registered in the land register (Grundbuch), to draw all the income from someone else's plot, rent included. If one burdens a supermarket that is for sale, the rent goes to the usufructuary rather than the owner — so before the purchase the right must be deleted, or its consequences calculated precisely.
• Section II: whether a usufruct exists, in whose favour, for what term and at what rank.
• The usufructuary's deletion approval, listed among the conditions for paying the price.
• Who signed the lease as landlord, and into whose account the rent is paid.
• If the usufruct remains: who bears maintenance, property tax (Grundsteuer) and loan interest (§§ 1041, 1047 BGB).
• Your bank's position: a usufruct ranking ahead of its land charge devalues the collateral.