Quest Legal Team

Our Story

Founded by Principal Lawyer Juan Perez, Quest Legal is an innovative commercial law firm that does things differently. We are a collaborative team of experienced lawyers focussed on helping our clients grow.

Our Team

Juan Perez

Founder & Principal Lawyer

Juan is the Founder and Principal Lawyer of Quest Legal. He has over 20 years experience in commercial, intellectual property, employment and banking law. He has led the consolidation of the banking licences of two of Australia’s largest banks and advised a number of financial institutions on regulatory engagement and prudential matters. Juan also has extensive experience advising on and negotiating a variety of business and franchising transactions. He provides specialised intellectual property advice for the protection of technology, software and business processes. He has over 15 years’ experience in executive leadership roles in banking and IT. In his spare time, Juan teaches karate, is known for only eating chicken wraps for lunch, and loves spending time with his family.

Paola Jonas

Operations Manager

Paola is our Operations Manager. She runs the firm’s operations and client affairs. Paola also manages our amazing team and coordinates all HR, administrative support, and office management for the team. In her spare time Paola loves to spend time with her family, traveling, eating out and falling from planes (with a parachute). We would be lost without her.

Mark Williamson


Mark is our commercial and intellectual property lawyer with experience in technology, start-ups, franchising and estate planning. Mark is admitted to the Supreme Court of NSW and holds a Bachelor of Creative Arts and a Bachelor of Laws at Macquarie University. He spends his spare time listening to music and is a FIFA accredited soccer coach. Mark is also an authority on Hawaiian shirts and is rumoured to own over 40 different ones.

James Diamond


James is one of our commercial lawyers with experience in start-ups, taxation, technology and sports law. James has gained valuable experience in Victoria, Queensland and NSW and overseas in Singapore, Mauritius, Indonesia and the UK. He grew up in rural New Zealand and has a deep-seeded interest in the agriculture industry. He loves Jiu Jitsu and is big fan of playing 9 holes at his local course.

Ace Pecenpetelovski


Ace is one of our commercial and intellectual property lawyers. Prior to joining Quest Legal, Ace worked with three of Australia’s broadcasting networks (Seven Network, ABC and SBS) in Legal & Regulatory Affairs, Business Affairs, Rights Management and Content Discovery. Ace was admitted to the Supreme Court of NSW in 2007 and holds a Bachelor of Communication (Journalism) / Bachelor of Laws from Western Sydney University. When he’s not in the office you’ll find Ace playing, watching or talking tennis (yes, he’s a little obsessed) or taking dance classes at Sydney Dance Company, dreaming of being a Christina Aguilera backup dancer.

James Bijen


James Bijen is one of our tallest lawyers with experience in family law, litigation and commercial document drafting. He holds a Bachelor of Arts majoring in Media and Communications along with a Juris Doctor from Macquarie University. James loves reading hard-copy newspapers (like it’s 2003) and is one of Sydney’s finest 15th division basketball power forwards. James is a regular trivia champion, and one day hopes to be a barrister.

Carlos Perez

Office Assistant

Carlos is our Office Assistant. He mainly works with the accounts team to ensure that the books are looking ready for each quarter, along with various other administrative tasks. He is a university student currently studying Information Systems at the University of New South Wales. He enjoys listening to music, gaming and spending time with his friends and family. Currently he’s focusing on being active and healthy to improve his overall well-being and look more like Arnold Schwarzenegger in the 70’s.