Firm Profile > MahWengKwai & Associates > Petaling Jaya, Malaysia

MahWengKwai & Associates

Real estate and construction Tier 2

MahWengKwai & Associates manages sub-sale transactions for landed and non-landed properties as well as mixed developments, alongside advising developers, individuals and companies on development agreements which include local and international clients. Raymond Mah is an established figure in construction arbitration and litigation, having appeared at every level of the Malaysian court system from the High Court to the Federal Court. Sarah Kambali has experience of both contentious and non-contentious real estate matters. Christine Toh has acted for architects, quantity surveyors and engineers in construction disputes, handling disputes through arbitration, adjudication and litigation.


‘The firm gave us a proposal outlining their opinions on the subject matter that enabled us to properly evaluate whether we should engage them.’

‘Hannah Patrick was attentive to the details that we provided her regarding our issue despite us only communicating online as our firms were in different states. She gave us regular updates regarding the progress of the case without us requesting it. Previously, we have used lawyers that required us to push them or made us wonder midway if they knew what they were doing but this was never the case with Hannah and her firm.’


Key clients

WEA Engineers & Associates Sdn Bhd

Leong Wai Choong & Leong Kuen Wai

Tee Resources Sdn Bhd

Industrial Concrete Products Sdn Bhd

Sime Darby Elmina Development Sdn Bhd

Eco Majestic Sdn Bhd

Dispute resolution Tier 3

Recognised for providing clients with a 'personal analytical approach', the dispute resolution team at MahWengKwai & Associates is directed by Raymond Mah, Chong Chieh Gan and Hannah Patrick. Based in Selangor, it is particularly noted for its work in real estate and construction adjudications. A standout highlight is its successful representation of KCSB Konsortium regarding the failure of a Land Administrator to apportion compensation amongst interested persons.


MWK & Associates’ personal analytical approach (and their willingness to devote time to analyse the dispute) invariably generates superior results. MWK also has a systematic team in whose operations one can feel confident‘.

Legal cases are professionally analysed, before court submissions are prepared. They are willing to devote time to suggestions and points put forward by the client‘.

Key clients

Paktor Pte Ltd

Paktor MY Sdn Bhd

Muhamad Nazri Bin Muhamad

PJ Centrestage Joint Management Body

Ngian Siew Siong

ICD Security Solutions Pte Ltd, Singapore

Prima Avenue & DPCC Phase 1 (Blocks G, H, I) Management Corporation

Ronset Sdn Bhd

Coway Basic Sdn Bhd

Sime Darby Property Berhad

Wong Jie Min, Adrian, Wong Kum Chee, Heng Ah Meng, Heng Ah Aa & Heng Ah Choon

Metropolitan Square Joint Management Body

Tang Seng Cheong & Tang Sau Yin

Assunta Hospital

Hon Marine (M) Sdn Bhd

Banking and finance Tier 4

Led by the 'proactive and responsive' Sarah Kambali, the banking and finance offering at MahWengKwai & Associates counts HSBC Bank Malaysia and CIMB within its client portfolio. It is particularly known for advising purchasers of developers’ projects, parties in sub-sale transactions and banking and/or financial institutions on matters such as terms of agreement and property reassignments.

Practice head(s):


The team is responsive and proactive in managing the matter with hands-on knowledge of the law as well as practical aspects‘.

Sarah Kambali is able to provide advice and assistance as and when required with her vast knowledge and experience in the sector. She is proactive and responsive and is able to meet demands with full consideration of the urgency of the matter‘.

Key clients

Public Bank Berhad

Hong Leong Bank Berhad

CIMB Bank Berhad

HSBC Bank Malaysia Bhd

Eco Majestic Sdn Bhd

Sime Darby Elmina Development Sdn Bhd

Labour and employment Tier 4

Raymond Mah leads the Employment Law & Industrial Relations Department at MahWengKwai & Associates. Handling contentious issues such as unfair dismissal and disciplinary procedures, it also assists with contract development and the implications of industrial disputes. Recent work has included advice on cost-cutting, salary reduction and retrenchment. Diana Cheak and Janessa Kok are key names to note.

Practice head(s):

Other key lawyers:

Key clients

Paktor Pte Ltd, Singapore

Paktor MY Sdn Bhd

Ebona Trading Sdn Bhd

Shirley @ Premalata a/p Vincent Ramesh

Who we are

MahWengKwai & Associates is a leading law firm of advocates and solicitors. We are committed to delivering efficient and effective legal solutions to our clients.

We are an energetic team of lawyers and support staff who are passionate about our work, building lasting relationships with our clients and exceeding their expectations.

We focus on getting to the heart of our clients’ needs to deliver legal services at the highest standards.

At MahWengKwai & Associates, we take pride in offering our clients legal services at the highest standards, including dispute resolution, corporate, commercial and conveyancing. Our purpose driven and personalised approach to legal practice ensures that clients benefit from a close working relationship with our lawyers. We recognize that understanding our clients’ needs and priorities allow us to better assist our clients achieve their goals.


MahWengKwai & Associates was established in Kuala Lumpur by Dato’ Mah Weng Kwai in 1985 after 12 years in the Judicial and Legal Services. Dato’ Mah built a strong reputation for civil and corporate litigation, arbitration and criminal matters. Years of dedication to the profession saw Dato’ Mah become President of the Malaysian Bar (2001-2003) and subsequently President of LAWASIA (2006-2008).

Raymond Mah joined the firm as an associate in 2005 made partner in 2008. Dato’ Mah resigned from the firm in 2010, allowing the growth and development of the firm to continue under the leadership of Raymond Mah, the firm’s present managing partner. Raymond also heads the Dispute Resolution and Corporate departments.

Dato’ Mah Weng Kwai was appointed to the High Court as a Judicial Commissioner in 2010. He was confirmed as a High Court Judge in 2011 and elevated to the Court of Appeal in 2012. Dato’ Mah returned to the firm as a consultant after his retirement from the judiciary in February 2015.

The MWKA team has grown and continues to grow from strength to strength over the years, with its present team of 50 persons, including 23 lawyers.

Values & Character

Our lawyers and staff work in an atmosphere of respect, for each other and for our clients. We deal with a sense of fairness, always remembering to treat our colleagues and our clients the way we want to be treated.

We believe in our people and are confident of their commitment for our firm, our work and our clients. And we make our words count by doing what we say we are going to do.

We are guided in the decisions we make by our 5 core values:

 Integrity and justice
 Effective and efficient solutions
 Love and respect for one another
 Continuous improvement
 Profitable and sustainable growth

Department Name Email Telephone
Dispute resolution Dato' Mah Weng Kwai +603-7887 2702
Dispute resolution, Corporate, Employment / Industrial Relations (IR), Individuals & Families Raymond Mah +603-7887 2702
Dispute resolution, Corporate, Employment / Industrial Relations (IR), Individuals & Families, Real Esate Sarah Kambali +603-7887 2702
Dispute resolution, Corporate, Employment / Industrial Relations (IR), Individuals & Families Gan Chong Chieh +603-7887 2702
Dispute resolution, Corporate, Individuals & Families Christine Toh +603-7887 2702
Corporate advisory Cassandra Nicole Thomazios +603-7887 2702
Dispute resolution, Corporate Hannah Patrick +603-7887 2702
Dispute resolution, Corporate, Employment / Industrial Relations (IR), Individuals & Families Diana Cheak +603-7887 2702
Dispute resolution, Employment / Industrial Relations (IR), Individuals & Families John Chan +603-7887 2702
Dispute resolution, Corporate Denise Phang +603-7887 2702
Dispute resolution, Corporate, Individuals & Families Prisilla Chong +603-7887 2702
Dispute resolution, Corporate, Individuals & Families Vivien Fan +603-7887 2702
Dispute resolution, Employment / Industrial Relations (IR), Individuals & Families Jasmine Wong +603-7887 2702
Dispute resolution, Employment / Industrial Relations (IR), Individuals & Families Eric Toh +603-7887 2702
Dispute resolution, Corporate, Employment / Industrial Relations (IR), Individuals & Families Janessa Kok +603-7887 2702
Corporate, Employment / Industrial Relations (IR) Marcus Leong +603-7887 2702
Dispute resolution, Corporate, Employment / Industrial Relations (IR), Individuals & Families Anis binti Mohd Sohaimi +603-7887 2702
Dispute resolution, Corporate Wong Sue Ann +603-7887 2702
Corporate advisory Tommy Wong +603-7887 2702
Technology & eSports, Media, Entertainment & Sports Lesley Lim +603-7887 2702
Corporate advisory Felicia Tang +603-7887 2702
Dispute resolution, Employment / Industrial Relations (IR), Individuals & Families Wong Chee En +603-7887 2702
Dispute resolution, Employment / Industrial Relations (IR), Individuals & Families Karmen Fung +603-7887 2702
Photo Name Position Profile
Mr John Chan  photo Mr John Chan Senior Associate
Ms Diana Cheak  photo Ms Diana Cheak Senior Associate
Ms Prisilla Chong  photo Ms Prisilla Chong Associate
Ms Vivien Fan  photo Ms Vivien Fan Associate
 Karmen Fung  photo Karmen Fung Associate
Mr Chong Chieh Gan  photo Mr Chong Chieh Gan Partner
Ms Sarah Kambali  photo Ms Sarah Kambali Partner
Mr Marcus Leong  photo Mr Marcus Leong Associate
Mr Raymond Mah  photo Mr Raymond Mah Managing Partner 
Dato Weng Kwai Mah  photo Dato Weng Kwai Mah  Consultant
Ms Anis Mohd Sohaimi  photo Ms Anis Mohd Sohaimi Associate
Ms Cassandra Nicole Thomazios  photo Ms Cassandra Nicole Thomazios Partner
Ms Hannah Patrick  photo Ms Hannah Patrick Senior Associate
Ms Denise Phang  photo Ms Denise Phang Senior Associate
 Felicia Tang  photo Felicia Tang Associate
Ms Christine Toh  photo Ms Christine Toh Partner
Mr Eric Toh  photo Mr Eric Toh Associate
 Chee En Wong  photo Chee En Wong Associate
Ms Jasmine Wong  photo Ms Jasmine Wong Associate
Mr Tommy Wong  photo Mr Tommy Wong  Associate
Number of lawyers : 23
Management & Support : 18
Bahasa Melayu
League of Lawyers
LAWASIA (The Law Association for Asia and the Pacific)

CLIENT: Mr Ngian Siew Siong
TESTIMONIAL: “I am very pleased and impressed with MWKA’s services, professionalism and expertise. MWKA’s success in the defence of my case is excellent news to me. What a relief! My deepest appreciation to John Chan assisted by Wong Chee En and under the supervision and advice of Raymond Mah for their excellent handling of my case. I highly recommend MWKA to anyone in need of legal services and assistance. Thank you again and forever.”

CLIENT: Hijjas Sow bin Suhaimi Sow
COMPANY/FIRM: Sansico Industries Sdn Bhd
TESTIMONIAL: “I always have a great experience with my engagement of MahWengKwai & Associates for their legal services. I have sought their legal advice on various occasions and they have always come back with very sound and prompt advice which I value. When needed, their lawyers, particularly Cassandra Thomazios and Tommy Wong in my matter, are able to assist with great urgency, which is a great attribute to rely on when you are looking to close a prospective business deal. I appreciate the fact that I am able to count on MahWengKwai & Associates to get the job done.”

CLIENT: Same Skies 
TESTIMONIAL: “We are a non-profit organisation, and MahWengKwai & Associates offered their support on a pro-bono basis for which we are profoundly grateful. Ms Janessa Kok was in charge of assisting and advising us in all of our legal matters involving the refugees’ right to work and our organisation’s volunteer program. We find the services provided by MahWengKwai & Associates very professional and helpful. Thank you.”

CLIENT: Wong Hoi Chen
COMPANY/FIRM: Omitech Road Systems (M) Sdn Bhd
TESTIMONIAL: I would like to extend my gratitude towards MahWengKwai & Associates for their insightful Online Talk sessions. In relation to the provision of their legal services, I would like to highlight the efficiency, professionalism and continuous effort of Ms Cassandra Nicole Thomazios and Mr Tommy Wong in advising us and attending to our requests. Thumbs up to the lawyers and MWKA definitely has my recommendation.

CLIENT: Ann Quah
COMPANY/FIRM: Mulia Property Development Sdn Bhd
TESTIMONIAL: “Mr Raymond Mah and his team of lawyers, Ms Cassandra Thomazios and Mr Tommy Wong, have demonstrated their commitment to providing exceptional client-focused legal services. His team of lawyers are accessible and very responsive to our needs and have provided us with solid legal advice. They work to ensure that the scope of their legal services stay consistent with our expectations and budget. We value our relationship with MahWengKwai & Associates and would be happy to recommend them.”

COMPANY/FIRM: Estate of Tan Bok Yin
TESTIMONIAL: “Having MahWengKwai & Associates for any public law litigation is a must, especially in a David and Goliath fight when the State armed itself with  the full might of the government apparatuses. Raymond Mah, Denise and Vivien together with their assistants went into the lion’s den, armored only with Rule of Law, powerful pleadings and determination were able to wrestle numerous victories at the appellate courts. Bravo and thank you.”

COMPANY/FIRM: Pristine Power Sdn Bhd
TESTIMONIAL: In my ongoing acrimonious and convoluted land acquisition exercise with a highway concessionaire, MWKA provided expert, comprehensive, professional, holistic and proactive legal advice. Along the way, I was updated in a timely manner and Ms Denise Phang & the team are patient, thorough and efficient in responding to my queries. I am very satisfied and happy with MWKA services, reasonable fee structure and would highly recommend MWKA to all my friends.

TESTIMONIAL: We would like to extend our utmost appreciation towards the team of MWKA, especially Christine Toh and Vivien Fan, for the professional legal services offered. Christine is well-versed with the law and thorough in her research. We are impressed with her ability to map complex issues, layout alternatives and explaining each alternative to us patiently for our consideration. With her auditing background, she is practical and aims to resolve conflicts to our best interest. We highly recommend Christine and her team if you are looking for lawyers with good commercial sense.

COMPANY/FIRM: Esstar Vision Sdn Bhd
TESTIMONIAL: “We are pleased with the legal services rendered by the lawyers in MahWengKwai & Associates. Their lawyers, particularly Christine Toh and Vivien Fan in my matter, are extremely committed and dedicated. Not only is she knowledgeable, but we are also impressed with how well Christine could articulate and convince the judge on complex accounting and construction issues. I would recommend anyone for their professional legal services.”

CLIENT: Ms Loo Suet Ying
COMPANY/FIRM: Steel-Point Sdn Bhd
TESTIMONIAL: “We are incredibly pleased with the professionalism and expertise of the lawyers in MahWengKwai & Associates. They have successfully recovered our long-outstanding fees from one of our former business partners. We appreciate every effort that the team puts in for our case. In particular, Ms Prisilla Chong and Ms Fung Kar Men who patiently answered all our queries and walked us through the legal process involved. We would recommend MahWengKwai & Associates to anyone for their professional services.”

COMPANY/FIRM: Lexie Knowles 
TESTIMONIAL: “We would like to extend our deepest gratitude to MahWengKwai & Associates who we have engaged for the adoption of our little girl. Despite the obstacles and hurdles faced, Jasmine Wong was very efficient and professional in advising and assisting us. We highly recommend Jasmine and MWKA for their professional legal services.”

TESTIMONIAL: “Anis was incredibly supportive and empathetic to my situation and helped me significantly in managing my way through the MCO legal process. She put up with my stupid questions and was always patient and understanding in answering them whilst helping me understand the legal and police processes behind decisions. I am very grateful for her support, especially as I don’t speak bahasa melayu and her advice to my wife obviously paid off. Terima kasih!”

COMPANY/FIRM: Perunding ACE Sdn Bhd
TESTIMONIAL: “We had the pleasure of engaging the services of MWKA to better understand the legal aspects of running our professional consultancy business, and we were given good and helpful advice. We want to extend our appreciation to John Chan and Janessa Kok whom we found most helpful and they go out of the way to make our engagement a pleasant one indeed. Thanks and keep up the good work.”

CLIENT: Ms Carol Lim
COMPANY/FIRM: Checkereit Sdn Bhd
TESTIMONIAL: “I was very fortunate to have retained the excellent services of MWKA and through them, Sarah Kambali, when dealing with our purchase of a property and what should have been a routine SPA. Although a reputable firm was representing the seller, Sarah’s counterpart was inexperienced and unfamiliar with the simple process. Without Sarah’s assistance, I expect that we would have had to spend a lot more time to finalise the SPA. Further, the seller had tried to renegotiate on terms agreed in the Letter of Offer, but Sarah had very firmly quashed this nonsense. I felt that I was in good hands during the whole time with Raymond and Sarah. ”

COMPANY/FIRM: Wiko Mobile Malaysia Sdn Bhd
TESTIMONIAL: “Our company is Wiko Mobile Malaysia Sdn Bhd. We are carrying on the trading business by offering mobile devices and accessories with innovative design, artwork and technology from France. Our company would like to thank the team of MWKA, specifically Jasmine Wong, Diana Cheak and John Chan for helping our company in our employment matter. They are very professional and efficient in handling our legal case, and have shown great professionalism throughout. They are also easily accessible and very accommodative to their client’s needs. We will recommend MWKA to other clients that need the relevant services in the near future.”