FirstService (FSV) 6-K Stock Purchase Agreement

Exhibit 99.3

FIRSTSERVICE CORPORATION

MATERIAL CHANGE REPORT

(Form51-102F3)

1. Name and Address of Company

FirstService Corporation (“FirstService”)

1255 Bay Street, Suite 600

Toronto, Ontario M5R 2A9

2. Date of Material Change

May 22, 2020

3. News Release

A news release was disseminated on May 22, 2020 through GlobeNewswire.

4. Summary of Material Change

On May 22, 2020, FirstService announced that it had completed the sale, on a private placement basis, of a total of 1,797,359 common shares (the “Common Shares”) of FirstService, at a price of US$83.46 per share, to Durable Capital Partners LP (“Durable Capital”), for proceeds of approximately US$150 million (the “Private Placement”). In connection with the Private Placement, FirstService granted customary registration rights to Durable Capital for the future resale of the Common Shares purchased in the Private Placement. FirstService intends to use the proceeds of the Private Placement to repay a portion of its existing indebtedness under its revolving credit facility, to finance potential future acquisitions, and to fund working capital and general corporate purposes.

5. Full Description of Material Change

The news release annexed hereto as Schedule “A” provides a full description of the material change.

6. Reliance on Subsection 7.1(2) of National Instrument51-102

This report is not being filed on a confidential basis.

7. Omitted Information

No significant facts remain confidential in, and no information has been omitted from, this report.

8. Executive Officer

If further information is required, please contact Jeremy Rakusin, Chief Financial Officer, at (416)960-9566.

9. Date of Report

DATED at Toronto, Ontario this 25^th day of May, 2020.

SCHEDULE “A”

COMPANY CONTACTS:

D. Scott Patterson

President & Chief Executive Officer

Jeremy Rakusin

Chief Financial Officer

(416)960-9566

FOR IMMEDIATE RELEASE

FIRSTSERVICE CORPORATION COMPLETES US$150 MILLION PRIVATE PLACEMENT OF COMMON SHARES

TORONTO,CANADA, May 22, 2020 – FirstService Corporation (TSX: FSV; NASDAQ: FSV) (“FirstService”) is pleased to report that today it completed the sale, on a private placement basis, of a total of 1,797,359 common shares (the “Common Shares”) of FirstService, at a price of US$83.46 per share, to Durable Capital Partners LP (“Durable Capital”), for proceeds of approximately US$150 million (the “Private Placement”). In connection with the Private Placement, FirstService granted customary registration rights to Durable Capital for the future resale of the Common Shares purchased in the Private Placement.

FirstService intends to use the proceeds of the Private Placement to repay a portion of its existing indebtedness under its revolving credit facility, to finance potential future acquisitions, and to fund working capital and general corporate purposes.

“We are pleased that Durable Capital understands the opportunity we have in front of us and has further increased its investment in FirstService,” said Scott Patterson, President and Chief Executive Officer of FirstService. “This financing provides us with greater financial flexibility to capitalize on growth opportunities that may arise in the current environment,” he concluded.

The Common Shares issued pursuant to the Private Placement have not been and will not be registered under the U.S. Securities Act of 1933, as amended (the “Securities Act”), or qualified by a prospectus in Canada. The Common Shares may not be offered or sold in the United States absent registration under the Securities Act or an applicable exemption from registration under the Securities Act, or sold in Canada absent an exemption from the prospectus requirements of Canadian securities laws. This news release shall not constitute an offer to sell or the solicitation of an offer to buy the Common Shares, nor shall there be any sale of the Common Shares in any jurisdiction in which such offer, solicitation or sale would be unlawful.

About FirstService Corporation

FirstService Corporation is a North American leader in the essential outsourced property services sector, serving its customers through two industry-leading service platforms:FirstService Residential – North America’s largest manager of residential communities; andFirstService Brands – one of North America’s largest providers of essential property services delivered through individually branded franchise systems and company-owned operations.

FirstService generates US$2.4 billion in annual revenues and has approximately 24,000 employees across North America. With significant insider ownership and an experienced management team, FirstService has a long-term track record of creating value and superior returns for shareholders. The Common Shares of FirstService trade on the NASDAQ and the Toronto Stock Exchange under the symbol “FSV”. More information is available at www.firstservice.com.

Forward-Looking Statements

This news release contains forward-looking information and forward-looking statements within the meaning of applicable Canadian and U.S. securities laws. Much of this information can be identified by words such as “expect to,” “expected,” “will,” “estimated” or similar expressions suggesting future outcomes or events, and includes the expected use of the proceeds of the Private Placement. FirstService believes the expectations reflected in such forward-looking information and statements are reasonable but no assurance can be given that these expectations will prove to be correct and such forward-looking information and statements should not be unduly relied upon.

Forward-looking information and statements are based on current information and expectations that involve a number of risks and uncertainties, which could cause actual results or events to differ materially from those anticipated. These risks include, but are not limited to, the risks related to FirstService’s business, including those identified in FirstService’s annual information form for the year ended December 31, 2019 under the heading “Risk factors” (a copy of which may be obtained at www.sedar.com or as part of FirstService’s Form40-F at www.sec.gov). Forward-looking information and statements contained in this news release are made as of the date hereof and are subject to change. All forward-looking information and statements in this news release are qualified by these cautionary statements. Except as required by applicable law, FirstService undertakes no obligation to update any forward-looking information and statement, whether as a result of new information, future events or otherwise.

-A2-