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Constantine & Co
Maria Pierou Sinanis cover
Maria Pierou Sinanis

Maria Pierou Sinanis

Principal and Notary Public Constantine & Co

Kogarah, NSW
Contact us

About Maria

Maria Pierou Sinanis serves as the Principal and Notary Public at Constantine & Co, a boutique law practice renowned for its commitment to client convenience and accessibility. Maria has been a driving force at the firm for over 14 years, where she leads with a focus on conveyancing, property law, business commercial law, and intricate matters of wills and estate planning, including probate and deceased estates. Her role as Principal is marked by a dedication to providing prompt and accessible legal services, underscored by the practice's distinctive promise of timely callbacks and flexible consultation locations, be it at home, in hospital, or office environments. Maria's legal journey commenced as a Solicitor with Gilbert M. Johnstone & Co, and has since seen a rapid ascendancy through key roles, including a partnership position at the firm. Her diverse experiences also extend into financial sectors as a Credit & Financial Services Officer with Laiki Bank Australia, enriching her approach to legal practice with valuable commercial insights. Her academic credentials are robust, with a Bachelor of Laws and a Bachelor of Commerce specialising in Human Resource Management and Industrial Relations from Western Sydney University. Additionally, she has honed her linguistic and cultural expertise through a Diploma in European Languages (Greek) from Macquarie University, allowing her to deliver legal advice fluently in both Greek and English. Maria's commitment to clear and jargon-free communication ensures that clients receive comprehensive and understandable legal counsel. Her extensive experience and multilingual capabilities position her uniquely, not only to lead within Constantine & Co but also to serve clients with tailored and insightful legal support across a broad spectrum of legal needs.

Practice areas

Commercial Law
Estate Planning
Property Law

Resume

Experience

Principal

Principal

Constantine & Co

Jan 2012 - Present • 14 years 9 months

Partner, Solicitor

Partner, Solicitor

Constantine & Co

Feb 2011 - Jan 2012 • 11 months

Solicitor

Solicitor

Gilbert M. Johnstone & Co

Jan 2008 - Jan 2010 • 2 years

Legal Secretary

Legal Secretary

Gordon & Johnstone Lawyers

Jan 2007 - Jan 2008 • 1 year

Credit & Financial Services Officer

Credit & Financial Services Officer

Laiki Bank Australia

Jan 2003 - Jan 2007 • 4 years

Education

Notarial Practice

Notarial Practice

College of Law

2013

Diploma in European Languages (Greek)

Diploma in European Languages (Greek)

Macquarie University

2002 - 2005

Bachelor of Laws/ Bachelor of Commerce

Bachelor of Laws/ Bachelor of Commerce

Western Sydney University

2001 - 2006

Bachelor of Commerce, Human Resource Management and Industrial Relations

Bachelor of Commerce, Human Resource Management and Industrial Relations

Western Sydney University

2001 - 2006

Contact information

Kogarah, NSW

Suite 3, Level 1, 55 Railway Parade, Kogarah, NSWWebsite

Practice certificate

Name
Maria Pierou Sinanis
Date of admission
2008
Certification type
Principal of a law practice
Class
Law Practice
Region
NSW

Last checked: 15 Apr 2026 • Checked with Law Society of NSW

Practice areas

Commercial Law
  • Notary Public
Estate Planning
  • Deceased Estates
  • Probate
Property Law
  • Conveyancing