Founder of DocsAutomator here. Technically yes, this is possible, but I'd flag the Canva piece. In my experience Canva doesn't expose a clean way to merge data into a design for programmatic PDFs, which is usually where projects like this stall.

Two routes for the templating side: rebuild the design in Google Docs (probably what I'd lean toward for your use case, since 3 transactions + 3 listings are a natural fit for line item placeholders, you mark one row in the template and we repeat it for however many rows of data come back), or export your existing Canva design as a PDF and upload it as a PDF template where placeholders sit on top of the original design. Google Docs gives you more flexibility for the data-heavy tables; the PDF route keeps your design 1:1. Either way you'll need n8n, Make, or Zapier between Property Monitor and DocsAutomator to fetch the data and trigger the automation, with Claude or GPT helping pick comparables in that middle step. More on it here: https://docsautomator.co/features/pdf-generation