equitable servitudes: enforced at equity; for a servitude to be enforceable, three requirements: intent that the restriction be

enforceable by successors-in-interest, notice to subsequent purchaser, and the restriction must touch and concern the land; no privity

requirement; equitable servitudes in subdivisions (also called mutual rights of enforcement and reciprocal negative servitudes) have two

requirements: intent to create a servitude on all plots and notice (actual, record, or inquiry)