Restrictive covenant
This article is not about the grammatical concept of a restrictive clause.
A restrictive covenant is a promise made in a deed by the buyer of real estate, especially one not to sell it to any person not of the "White race" or otherwise considered an unacceptable owner, and not to sell it without exacting the same promise from the buyer. In the case of Shelley v. Kraemer, the United States Supreme Court ruled that such a covenant could not be enforced by the courts.
