Employer-specific from the first line
We open on something true about the organisation and the mandate of the role, then connect it directly to the two or three things in your history that make you the low-risk hire. No 'I am writing to apply for the position of'.
A template you can actually reuse
Alongside your finished letter you get the structure behind it and guidance on which paragraph to swap per application, so you are not paying for a new letter every time you apply.
Consistent with your resume and LinkedIn
Same voice, same claims, same numbers. When a Toronto recruiter reads all three, the story holds together.