The following entities may register with the Secretary at any time, including after a notice of intent and owner’s offer of right of first purchase have been sent to the Secretary, to receive owners’ offers of first purchase by sending a written request to the Secretary: Any legally organized tenant association or other group representing any of the tenants at any assisted project; Any nonprofit developer; and Any other developer unrelated to the owner and experienced in the ownership or operation of low income housing projects. On receipt of an owner’s offer of right of first purchase, the Director shall provide the owner with a list of all entities registered under this regulation. Not later than 10 days after the owner receives the list of entities registered to receive a copy of the offer, the owner shall send by certified mail, return receipt requested, the owner’s offer to any person or entity on the registration list.