Our Team
Peter Hallahan/Principal
Chartered Accountant Peter Hallahan has been in practice for over 18 years. As Principal and founder of Hallahan & Co, he ensures all technical and quality assurances are met.
Peter has always worked with small to medium-sized businesses and believes any owner-managed business can benefit from the good work from Hallahan & Co.
In addition, Peter has been extensively involved with the real estate industry since the early 1990s and considers himself an industry expert.
Peter always tries to be available to talk about your business if you have specific enquiries or wish to talk confidentially.
Karl Karajkov/Client Services Manager
Karl is Client Services Manager for Hallahan & Co. He graduated from QUT in 2004 with a Bachelor of Business and is currently studying to become a chartered accountant. Karl has worked in the practice since 2005.
Karl’s role is to be across everything happening in the business and to manage the work flow. Often, if you call with an enquiry it will be Karl you talk to. He is always available to pick up the phone, and if Karl can’t help you personally, he will make it his priority to find someone who can as soon as possible.
Karl is happy to give advice about your financial enquiries and discuss bookkeeping, accounting and taxation issues in your business. Karl is able to give you information on the progress of your work through the office.
Margaret Leyland/Senior Accountant
Margaret has over twenty years experience as an accountant in public practice. She has been with Hallahan & Co. for nine years and has established close working connections with many of the firm’s clients.
Margaret works Monday to Wednesday. If she isn’t available when you call, she will make every effort to get back to you within 24 hours.
Trevor Park/Accountant
Trevor has over 11 years experience with Hallahan & Co. and almost 30 years in the profession. Trevor is able to deal with most issues and has enjoyed a great relationship with many of his clients for over 20 years.
Trevor works 4 days every week at Hallahan, taking Wednesdays off to relax with his grandson.
Carla Mullenberg/Manager - Administration
If you are a client with Hallahan & Co. you will get to know Carla Mullenberg very well. As Manager of Administration she makes sure the office runs smoothly – which she is very happy to confirm that it does.
If you can’t get onto Peter straight away, Carla will be happy to help you with any issues you have or information you require, or put you onto someone else in the office who can help.
Carla also manages and maintains the new client portal. If you have any questions about how the portal works, or what information is kept inside, Carla is your point of contact.