Declaration of covenants, easements, and restrictions. In the event that development pursuant to the FRD Overlay District regulations is proposed or occurring upon multiple lots which are not in common ownership or control (or which may be separately subjected to mortgages or liens as security for indebtedness), the owner of each constituent lot shall join into and deliver to the City a declaration of covenants, easements, and restrictions in form and substance reasonably acceptable to the City Solicitor pursuant to which such owners shall be obligated to keep and maintain the entire development subject to such easements and agreements as may be necessary to maintain the development as a common and indivisible scheme and plan.