Photo of Diane Maxima Singayan-Mallillin

Diane Maxima B. Singayan-Mallillin


Diane Maxima Singayan-Mallillin is an associate in Quisumbing Torres' Corporate & Commercial/M&A Practice Group and and Industrials, Manufacturing & Transportation Industry Group. She has eight years of experience handling corporate compliance matters. Diane is also a certified public accountant, having passed the board in 2006.

Practice Focus

Diane advises on doing business concerns, foreign investment laws and regulations, and establishment and setting up of entities including post-incorporation requirements. She also performs contract review and due diligence. She also handles corporate housekeeping and dissolution of domestic and foreign corporations.

Professional Honors

  • Rising Star for Corporate and M&A, The Legal 500 Asia Pacific, 2020 to 2023

Professional Associations and Memberships

  • Integrated Bar of the Philippines - Member
  • International Bar Association - Member
  • Order of the Purple Feather Honor Society, University of the Philippines, College of Law - Member


  • Philippines (2012)


  • University of the Philippines (J.D., Dean's Medal Award) (2011)
  • University of the Philippines (B.S. Business Administration and Accountancy, cum laude) (2006)