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William Poulos Law Office 

William Poulos, Barrister

P.O. Box 22010, RPO Cataraqui,

1071 Midland Ave. Kingston, Ont. K7P 2X8

613- 532-5811

Over 34 years experience in Civil Litigation

We work closely with clients to provide exceptional legal services that are catered specifically to their needs. Take a look at the services we offer, and get in touch today with any questions.



Law Society of Ontario 

Frontenac Law Association

Ontario Criminal Lawyers’ Association (Affiliate Member)

Commercial Tenancy

A landlord’s application for a declaration that a commercial lease was terminated was dismissed. The court considered Relief from forfeiture principles and found the Tenants attempted in good faith to address the Landlord’s concerns and were “seemingly ignored at times.” The court found no substantial breaches by the Tenants or significant impacts.

Martineau Holdings v. Caudle 2023 ONSC 358 


Cases referred to on this website are for general information purposes only , and are not  legal advice. Should you need legal advice on your matter, a lawyer should be consulted to give advice ,on the specific circumstances of your case.

William Poulos

When you retain our office you are directly retaining me. I will be the one working on your file from beginning to end. I bring a strong work ethic to my files and am open to trying to achieve a creative resolution for the client or go to court if that is necessary to fight for my client’s rights/interests.

Virtual Meetings available


Over 34 years Litigation experience

I have been in many levels of court and have accordingly have experience in written and oral advocacy and in the skills necessary outside and inside a court room or administrative tribunal. 

Agreement of Purchase and Sale. Failure to close.

In the following case, a sale of land failed to close. The court found the buyer made a timely , valid requisition. The property was being used as a fourplex but the permitted use was a three unit apartment dwelling. The buyer’s $25,000 deposit was ordered to be returned.

2651171 Ontario Inc. v. Brey 2022 ONCA 148


Amending Pleadings

“I agree with the observation of William J. Poulos in his article Prejudice: Taking a Hard look at the Merits (1999), 22 C.P.C. (4th) 366 at p. 379, that when it comes to alleging actual prejudice in response to a motion to amend, the specific allegation of prejudice should be detailed in sufficient particularity in evidence to allow the opposing party to respond to the allegation and to allow the Court to take a hard look at the merits of the allegation. “

1588444 Ontario Ltd. V. State Farm and Casualty Company, 2017 ONCA 42 (Canlii), at para. 32


Email Address*



P.O.Box 22010, 

RPO Cataraqui

1071 Midland Avenue, Kingston, Ontario K7P 2X8

Call Me

613 532 5811


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