A bond that consolidates the issues of multiple properties. If the properties covered by the consolidated mortgage bond are already mortgaged, the bond acts as a new mortgage. If the properties do not have outstanding mortgages then the bond is considered the first lien. It can be used as a way to refinance the mortgages on the individual properties. The bond is backed by real estate or physical capital.
Consolidated mortgage bonds are used by large companies with many properties, such as railroads, looking to refinance them into one bond to market to investors. It allows companies to set a single coupon rate instead of dealing with several, and makes investors happy because they can purchase a singular bond that covers physical assets of a similar type.