Define “National Retailer” in Cotenancy Clause

A smaller tenant that's negotiating a lease for space in your shopping center may want to negotiate a cotenancy clause that requires you to rent to a “national retailer.” You may be willing to include such a clause, especially if you're already negotiating a lease with a specific national tenant. But if that deal falls through and you end up renting to a tenant that's well known, but operates in only one region of the country, your smaller tenant may claim that you've violated the cotenancy requirement in its lease.