As every seasoned real estate executive knows, the tenant mix of a commercial building is very important.  The type of tenants that occupy a property can drive its desirability and reputation in the local market.  Those are market factors that, along with location, serve to support market rents.  As well, the financial stability of the tenants in the building are central to creating value for the property owner beyond simple bricks and mortar.  From a credit underwritting standpoint, not all tenants possess the same credit profile - and therefore do not present the same value when long term financing is sought using those lease revenues as collateral.  The cost of permanent financing, favorable loan to value (LTV) and debt service coverage ratios (DSCR) are directly related to the credit quality of the tenants in a stabilized cash flow projection.  Enhancing the lease credit lowers the cost of capital.