Sandra Astolfo is a Partner at WeirFoulds with a practice devoted to infrastructure and construction law. She has worked with her clients for almost 30 years and is a frequent speaker at continuing legal education programs and industry conferences.
From negotiating construction agreements, to providing contract administration advice, to litigating, mediating and arbitrating disputes, Sandra advocates on behalf of all project participants. She also assists her clients with protecting their interests in the event of a project participant’s insolvency.
Sandra is a Fellow of both the Canadian College of Construction Lawyers and the Construction Lawyers Society of America. Both are associations composed of outstanding lawyers who are distinguished for their skill, experience and high standards of professional and ethical conduct.
She is certified by The Law Society of Ontario as a Specialist in Construction Law and has authored numerous articles on various construction law topics.
Sandra is the recipient of the Ontario Bar Association’s 2019 Construction and Infrastructure Law Award of Excellence and is the first female recipient of the award. She is also repeatedly recognized by Best Lawyers in Canada and the Canadian Legal Lexpert Directory as a leading lawyer in Construction Law.
Sandra Astolfo is a Partner at WeirFoulds with a practice devoted to infrastructure and construction law. She has worked with her clients for almost 30 years and is a frequent speaker at continuing legal education programs and industry conferences.
From negotiating construction agreements, to providing contract administration advice, to litigating, mediating and arbitrating disputes, Sandra advocates on behalf of all project participants. She also assists her clients with protecting their interests in the event of a project participant’s insolvency.
Sandra is a Fellow of both the Canadian College of Construction Lawyers and the Construction Lawyers Society of America. Both are associations composed of outstanding lawyers who are distinguished for their skill, experience and high standards of professional and ethical conduct.
She is certified by The Law Society of Ontario as a Specialist in Construction Law and has authored numerous articles on various construction law topics.
Sandra is the recipient of the Ontario Bar Association’s 2019 Construction and Infrastructure Law Award of Excellence and is the first female recipient of the award. She is also repeatedly recognized by Best Lawyers in Canada and the Canadian Legal Lexpert Directory as a leading lawyer in Construction Law.
Partner Sandra Astolfo will serve as a Program Chair for the 7th Annual Legal Guide to Managing Construction Liens Process in Ontario, a program that will be offered by Osgoode Professional Development on Tuesday, November 18, 2025.