Ms Loo started off as a litigator in two reputable law firms in Kuala Lumpur; namely, Messrs. Skrine & Co. and Messrs. Cheang & Ariff where she gained invaluable insights into various corporate and courtroom battles; the most significant being the highly sensational case of Insas Bhd & Anor v Ayer Molek Rubber Co Bhd & Ors [1995] 2 MLJ 833 Federal Court back in the year of 1995; in which she had appeared together with several Senior Counsels before the Court of Appeal and the Federal Court.

Ms Loo subsequently ventured into the in-house legal and corporate worlds of multi-national company, Fuji Xerox Asia Pacific Pte Ltd; thereafter, Phileo Allied Bank (M) Bhd (as it was then known); and finally, the Sunway Group of Companies as Head of the Legal Department. In her seven years with Sunway, Ms Loo regularly advised the Chairman of the Group and his Senior Management team on legal issues pertaining to its diversified investments both local and abroad (namely, in the PRC & Hong Kong, Macau, Australia, India, Singapore, Vietnam, Cambodia and Indonesia).

Ms Loo was also very much involved in the numerous and varied exercises undertaken by the Group; notably the asset backed securitisation funding exercises, issuance of Islamic (Al-Bai Bithaman Ajil) debt securities, restructuring and buyback of EuroConvertible Bonds, listing of an infrastructure company on the Main Board, launching of schemes of compromise and arrangement running parallel in both Malaysia and Singapore (pursuant to s176 of the Companies Act Malaysia and s210 Companies Act Singapore), employees share option schemes, private placements, rights issues, mergers and acquisition and toll road privatisation. In doing so, Ms Loo frequently dealt with inter alia senior representatives from various government and regulatory bodies, corporate and banking leaders as well as bondholders and creditors, both local and foreign.

In addition, Ms Loo led her department in the review and preparation of all the requisite transaction documents; namely, the prospectus, information memorandum, offering circulars, shareholders circulars, financing and security documents, Explanatory Statement and other s176 and s210 Scheme documents as well as agreements on various commercial matters such as joint ventures, shareholders (including the Syariah based Musyarakah Shareholders Agreement), subscription, put and call options, deed poll, underwriting, toll road concession, turnkey construction, project management/ development, hotel management, sale and purchase of lands and assets, IT, consultancy etc.

Prior to Sunway, Ms Loo had briefly ventured out of law to pursue her other passion ie. news reporting by joining NTV7 as one of its pioneer Broadcast Journalists where she had appeared live on the nightly 8pm Bahasa Malaysia News Bulletin covering the infamous trial of the then DPM, Datuk Seri Anwar Ibrahim. Ms Loo was also chosen to represent NTV7 in interviewing several Hollywood celebrities including Mel Gibson, Renee Russo and Jet Li at the premiere of Lethal Weapon 4 in Los Angeles, USA.

Having firmly returned to her legal roots and determined to further expand her horizons, Ms Loo joined Messrs John Tong in 2007 and now assists Mr. John Tong and his team on matters undertaken by the firm; focussing particularly in the corporate and commercial areas of work.