Accountants, taxation and business advisory based in Hawthorn, Melbourne. (03) 9853 2811 (work) Derek Ma Derek has over 9 years' experience advising a wide range of clients ranging from employees, family-owned businesses, multi-national corporations to retirees. Aside from being a Certified Practising Accountant, he is also an Accredited Self Managed Superannuation Fund Auditor. Hayden Cotsford Hayden has over 10 years' experience providing tax advice to private clients and businesses of all sizes. He strongly believes in knowing his clients and their businesses well so he can deliver the best advice both now and for the future. Clients value Hayden for the strategies he delivers enabling them to maximise their goals at every phase of their businesses, from starting up, stabilisation and growth, to winding down.