A tax appeal succeeds or fails on comparable evidence, not on frustration with the bill. Martensville sets its own assessment and mill rate separately from Saskatoon, and an appeal has to show that the assessed value sits above what similar homes in Martensville actually sold for, using recent, genuinely comparable sales rather than a single favourable listing.
Joel pulls those comparables the same way he prices a listing, walking the property and comparing it against homes that actually closed rather than homes still for sale. That evidence goes to the owner and their advisor to file, since Joel represents the sale side, not the appeal itself.
If the appeal succeeds, the lower assessment also affects what a buyer's lender sees at resale, which is one more reason to get the number right rather than guess at it. Joel has 72 five star Google reviews from the Saskatoon side of his practice. Get your hand-reviewed valuation from Joel Dyck.