In mortgage finance, an assumption indemnity clause is a clause included in assumable mortgage agreements which informs potential buyers of their obligation to assume all debt obligations related to a mortgage when they take over the mortgage.
Home buyers who assume mortgages from the previous owners must assume the full debt and responsibility to amortize the loan and meet interest payments. In accepting a mortgage agreement which contains an assumption indemnity clause, you free the former mortgagor from all responsibilities to the mortgage and you take on the mortgage in their place.
In Switzerland, mortgages are normally assumable and mortgage agreements typically contain assumption indemnity clauses.
Swiss mortgage comparison