Section 17(1) of the Property Management Services Ordinance (Cap. 626) and section 14 of and Schedule 4 to the Property Management (Licensing and Related Matters) Regulation stipulate that licensees must, within 31 days after any change of the prescribed matters (including change of director(s)) takes place, notify the PMSA in writing in the forms specified by the PMSA and accompanied by the supporting documents which the PMSA may from time to time specify.