Our Team

We are committed to forming close partnerships with our clients, enabling us to understand your unique situation and customise the assistance we provide to suit your requirements. Our commitment to excellence is evident in our hardworking team and the exceptional service we are proud to offer.

Previously operating as Ruthvens Accountants and Business Advisors our head office is now in Burswood, with our Midland Office open by appointment.

Our enthusiasm for our work means you get a friendly team of professionals eager to use their expertise to help you succeed!

John Previti


“My personal goal is to ensure our clients receive the very best professional advice to grow their business and increase their family’s wealth.” 

John has extensive experience in taxation, superannuation and business development. He is a qualified Chartered Accountant with a Bachelor of Commerce from Curtin University majoring in Accounting and Taxation. In addition to his accounting qualifications, John has completed the Diploma of Financial Services (Financial Planning), the Institute of Chartered Accountants SMSF Specialist Course from the University of NSW and certificate IV of Mortgage Broking.

John is a customer-focused accountant committed to providing excellent service to his clients, developing strong business relationships and ensuring all client calls are returned on the same day.

Everybody wants to legally reduce the amount of tax they are required to pay. John specialises in developing strategies to minimise your tax, using business structures such as companies, trusts and Self Managed Superannuation Funds.

Changes to the superannuation rules have provided significant opportunities to establish tax-free retirement incomes. Through his postgraduate studies and constant professional development, John has a strong understanding of Self Managed Superannuation Funds and “thinks outside the square” to develop strategies to suit our client’s needs.

John has worked as a mortgage broker for the last 4 years and is a credit representative for WMP Finance, a boutique finance broking firm that specialises in helping clients get the best deal for their home or business loans. We also can assist with car and equipment finance, ensuring our clients structure their finance in a way to maximise their tax deductions.

In his spare time, John enjoys being a member and staunch fan of the West Coast Eagles, boating and spending time with his family.

Sharon Yujnovich

Senior Associate

Sharon commenced working at WMP Tax in February 1995.  Prior to joining she completed an Associate Diploma of Business.  Sharon’s role at WMP Tax is to manage our client’s needs with all aspects of their business requirements including the preparation of financial statements, income tax returns and business activity statements.  Sharon supervises and mentors our team of accountants.

Sharon is also a qualified dance teacher and is involved in the family horse racing business.

Corey Watson


Corey is one of WMP Taxs’ Accountants and is always hard at work in the office managing our client portfolio . With a Bachelor of Business and Cert IV in Finance & Mortgage Broking, Corey is currently studying his Chartered Accountant Diploma. He is a wealth of knowledge and is always available to assist over the phone with Client tax and financial enquiries.

In his down time he enjoys the outdoors, camping, 4 wheel driving and a wide range of sports.

Edwin Ngaginta


Has over 6 years of experience in public practice with sound knowledge of Australian Taxation Law, and primarily responsible for preparation of income tax returns and financial reports. He is a friendly accountant with a positive attitude who enjoys the challenge of researching complex taxations issues and finding the optimum solutions. He has a good exposure in using different accounting system (MYOB, Handitax, Xero, and Reckon).

Professional Qualifications:

  • Bachelor of Commerce (Accounting & Finance)
  • Certified Practicing Accountant (CPA)

In his spare time Edwin enjoy hanging out at local coffee shops reading, watching movies, badminton or catching up with friends.

Laura Hancock

Client Service Assistant

Laura joined WMP Tax in January 2011. She is responsible for liaising with clients, tax payments and Australian Taxation Office negotiations.

With over 10 years’ experience working within accounting firms Laura has developed proficient administration skills perfect for assisting with client’s needs.

Laura loves spending time with her daughter, husband and friends and is also a qualified dance teacher.

Leigh Wright

Client Service Assistant

Leigh joined WMP Tax in March 2019, working part time to assist Laura and Elena with administrative and financial duties. Leigh is currently studying a Certificate IV in Accounting and Bookkeeping.

With over 20 years administrative and customer service experience, Leigh is looking forward to being able to put into practice her new skills within WMP Tax.

When Leigh is not studying or working, she is managing a family of five and enjoys spending time gardening in the sunshine with her husband and walking her two dogs.

Elena Burns

Bookkeeper and Company Accountant

Elena joined WMP Tax in June 2010 as an accountant.

Elena has completed accounting studies at TAFE and further education with the Taxation Institute of Australia. Elena specialises in dealing with small business clients, assisting them with their tax, GST and MYOB issues.

In Elena’s spare time she loves going bike riding along the beach with her husband and kids.