Leon Monastirski
Leon Monastirski cover
Leon Monastirski

Leon Monastirski

Principal / Founding Principal Astir Associates

location
Sydney, NSW
Click to Reveal Phone Number(02) 926..

About Leon

Leon Monastirski is the founding principal of a distinguished legal and accounting practice established in 2003 in New South Wales. With over 25 years of experience, Leon's career began in Melbourne, where he built a foundation in both legal and financial domains. His journey saw him transitioning from key roles in major financial institutions to leading a private practice, before relocating to Sydney during the 2000 Olympic Games. Here, he played a pivotal role at a nationally respected professional services firm before venturing to establish his own firm. Leon is renowned for his multifaceted expertise spanning accounting, taxation advisory, corporate and commercial law, as well as property law. His client portfolio is diverse, including prominent national and multinational corporations, significant industry players, and high-net-worth individuals. He offers adept guidance on business advisory, tax planning, and superannuation fund audits, alongside strategic advice in criminal and family law matters. His proficiency also extends to conveyancing, personal injury cases, debt recovery, estate planning, and alternative dispute resolution. Having held significant managerial positions, Leon brings a wealth of experience from previous roles like Litigation Services Manager, Business Services Manager, and Principal at various esteemed firms. His educational background is equally impressive, holding a Master of Laws from The Australian National University and a Bachelor of Laws from Macquarie University, alongside a CPA from Deakin University. Leon’s comprehensive understanding of both the legal and accounting sectors enables him to provide holistic and strategic solutions tailored to meet the nuanced needs of his clients.

Practice Areas

Commercial Law
Criminal & Traffic
Employment Law
Estate Planning
Family Law
Litigation & Disputes
Personal Injury
Property Law

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Resume

Experience

Principal
Principal
ASTIR ASSOCIATES Certified Practising Accountants & Lawyers
Oct 2003 - Present · 22 years 9 months
Business Services Manager
Business Services Manager
WEARNE & CO. Chartered Accountants & Business Advisors
Jan 2001 - Jul 2003 · 2 years 6 months
Litigation Services Manager (Contract Position)
Litigation Services Manager (Contract Position)
GREEN PENKLIS & LAWSON Chartered Accountants
Oct 2000 - Jan 2001 · 3 months
Principal
Principal
MONASTIRSKI & CO. Certified Practising Accountants
Jun 1990 - Sep 2000 · 10 years 3 months
Financial Planner
Financial Planner
CAPITA FINANCIAL GROUP LTD.
Mar 1989 - May 1990 · 1 year 2 months
Trainee Accountant
Trainee Accountant
I.O.O.F. OF VICTORIA
May 1988 - Mar 1989 · 10 months
Real Estate Agent
Real Estate Agent
STOCKDALE & LEGGO Real Estate
Nov 1987 - May 1988 · 6 months

Education

Master of Laws (LLM), Legal Practice
Master of Laws (LLM), Legal Practice
The Australian National University
2003 - 2006
Bachelor of Laws (LLB), Law
Bachelor of Laws (LLB), Law
Macquarie University
1999 - 2003
CPA Program, Post-Graduate Program
CPA Program, Post-Graduate Program
Deakin University
1996 - 1999
Bachelor of Commerce (BCom), Accounting & Commercial Law
Bachelor of Commerce (BCom), Accounting & Commercial Law
Deakin University
1993
Diploma of Business, Accounting and Business/Management
Diploma of Business, Accounting and Business/Management
Swinburne University of Technology
1986

Contact Information

Sydney, NSW

LocationLevel 1, 299 Elizabeth Street, Sydney, NSW
Click to Reveal Phone Number+6129264..
WebsiteView Website

Practice Certificate

Name
Leon Monastirski
Date of Admission
2004
Certification type
Principal of a law practice
Class
Law Practice
Region
NSW
CheckLast checked: 9 Jul 2026•
Checked with the Law Society of NSW

Practice Categories

Commercial Law
  • Company Secretarial
  • Superannuation
  • Tax Law
Criminal & Traffic
  • Criminal Law
Employment Law
  • Workers Compensation
Estate Planning
  • Probate
  • Wills and Estates
Family Law
    Litigation & Disputes
    • Debt Recovery
    Personal Injury
      Property Law
      • Conveyancing
      • Leases