REALTOR® is not a synonym for “real estate agent” you’re free to print anywhere — it is a certification mark CREA actively controls.
Short answer
No. CREA states directly that the trademarks “REALTOR®, REALTORS® and the REALTOR® logo are controlled by CREA and identify real estate professionals who are members of CREA” — roughly 155,000 of them, across 61 boards and associations. Article 27 of the REALTOR® Code spells out what you can’t do with it: challenge its validity, put it in a domain name or e-mail address without authorization, or register anything “confusingly similar.”
The Code’s Article 27 (CREA Trademarks) is specific rather than aspirational. Verbatim: a REALTOR® “shall only use the trademarks of The Canadian Real Estate Association in accordance with CREA’s rules, regulations and policies.” The sub-clauses bar four things directly: challenging the trademarks’ validity (27.1); using them in a domain name or e-mail address without CREA’s authorization (27.2); using, displaying, or attempting to register any mark that incorporates or is confusingly similar to a CREA trademark (27.3); and letting a buyer, seller, or other third party in your transaction misuse them without you stepping in (27.4) — that last one makes you responsible for policing use by people you work with, not just yourself.
Use REALTOR® the way CREA’s own style rules require — capitalized, with the registered symbol, referring to active CREA members — and never fold it into a domain, a coined slogan, or a logo of your own design without checking CREA’s current brand guidelines first. If your membership lapses, so does your right to the mark; it is not something you own independently of CREA once you register it, the way a trademark you file yourself would be.
Article 27.4 goes a step further than most agents expect: you are “responsible for ensuring that buyers and sellers, for whom they are providing any service, as well as any other third parties in any way involved in transactions, do not use CREA’s Trademarks in any unauthorized manner.” That includes a contractual obligation to protect the mark under CREA’s policies — so a client reusing your “REALTOR®” branding on their own for-sale-by-owner attempt after your listing expires is a problem you are expected to head off, not just your own conduct.
See also: trademarking your own personal brand and whether your website needs an accessibility review.
A 30-minute call is enough to map where CREA's trademark rules end and your own brand begins.