District of Columbia Code Division VII. Property. § 42-3402.02. Conversions.

(a) Prerequisite. -- (1) An owner shall not convert a housing accommodation into a condominium or a cooperative until the Mayor certifies compliance with the provisions of this chapter.

(2) Only an owner may request a tenant election to convert, send notice of intent to convert, or convert an accommodation. Certification of a conversion by the Mayor is not transferable to a subsequent owner. An owner who has issued a notice to vacate for the immediate purpose of discontinuing the housing use and occupancy of a rental unit pursuant to § 42-3505.01(i)(1)(A), or a purchaser from such owner or successor in interest to such owner, may not request a tenant election to convert the housing accommodation in which the rental units are located.

(3) Certification by the Mayor is effective for 180 days; provided, that the Mayor shall extend the certification if a majority of the qualified voters consent. If the owner receives certification by the Mayor and does not convert within this period, the owner may not request another tenant election or certification by the Mayor for that accommodation for 1 year from the date of expiration of the prior certification.

(4) Once converted or established as a condominium or cooperative in a newly constructed building, the owner need not comply anew with the requirements of this chapter even if the condominium units or cooperative units have been occupied by tenants partially or exclusively, provided that each tenant has been given written notice, prior to occupying the unit, of the fact that the unit being rented is part of a condominium or cooperative or each tenant who was not given notice waives the right in writing before or after occupancy or vacating the unit.