How LeadSynth finds and checks buyer posts

1. Where the posts come from

Each market has a fixed set of about 18 Google searches restricted to public Reddit posts from roughly the past month. They run once a week, on Sunday afternoon Toronto time, through a search API that returns Google's results: a title, a link and a short snippet for each post.

For the Greater Toronto Area, the searches cover communities such as r/TorontoRealEstate, r/PersonalFinanceCanada, r/FirstTimeHomeBuyer, r/askTO and r/TorontoCondominiums, plus open searches for people buying in Mississauga, Brampton, Oakville, Burlington, Milton, Markham, Richmond Hill and Vaughan, and for first-time buyers using an FHSA.

That means we only see what Google has indexed and what our searches match. We miss posts, and we say so wherever we publish numbers.

2. How each post is checked

Every post is read and checked on its own, with an AI-assisted process, using its title and Google's snippet. We don't open Reddit, use a Reddit account or the Reddit API. Each post gets:

• A class: buying, buying and selling, selling, browsing, already bought (offer accepted or closing), renting, landlord, off-topic, or unclear.
• A location call: in the market, outside it, or can't tell. Each market has a list of the places it covers.
• An estimated posting date, worked out from the post's ID. It's accurate to a day or two.
• A one-line reason, based only on the title and snippet. If the snippet is clearly a reply rather than the original post, the reason says so.

3. What makes the weekly list

• The person is buying, or buying and selling.
• The home is in the market.
• The post is from about the last 30 days.
• It hasn't appeared in an earlier brief for that market.
• Cross-posts of the same question are merged into one row.

Rows are ranked: a stated timeline, a pre-approval or active bidding first; then questions about a specific listing or building; then posts with budget or income details; then general "should we buy?" posts. Newer posts win ties. A brief has up to ten rows. If fewer than five good buyers turn up, the brief is shorter and says so. It's never padded with browsers or renters.

4. What's in a row

• Our own short summary of the post, the community, and the approximate date.
• Why it matters: one line, using only facts from the post.
• The link to the public post.
• A suggested reply: two to four sentences that genuinely help with the person's question, written for the agent to post publicly under their own name. No pitch, no "DM me", no links, and a light note that the writer is an agent.

5. What we take out

• Renters and landlords.
• Sellers who aren't also buying.
• Browsers: "should I buy?" with no plan of their own.
• People who've already bought, had an offer accepted, or are closing.
• Buyers outside the market, or where we can't tell.
• News, politics and market chat.
• Anything older than about 30 days, and anything already sent.

In our first GTA sample, more than seven in ten posts the searches returned fell into one of these groups. The GTA Buyer Pulse shows the breakdown.

6. Privacy rules

• Briefs contain a link to a public post and our own summary of it. Never a username, email address, phone number or other contact detail.
• Public pages, like the city pages and Buyer Pulse reports, show aggregate counts and general topics only: no usernames, no links to individual posts, no quotes that could identify anyone.
• We don't sell or share what we collect. Search results are kept in our private repository to avoid sending the same post twice.
• Opting out: if you wrote a post and don't want it in a brief, email info@leadsynthai.app with the link and we'll exclude it from future briefs.

7. What we never do

• Run bots, or post, comment or reply anywhere, in a client's name or ours.
• Send DMs or any message to the people in a brief.
• Build or sell contact lists.
• Sell personal data, to clients or anyone else.
• Take a referral fee or a share of an agent's commission.

LeadSynth used to automate outreach. We stopped: people can tell, and the platforms are right to ban it. Today we do the reading; the conversation stays with the agent.

8. Limits

We can't promise closings, and a post isn't a client. Snippets are short, so some calls are judgement calls. Dates are estimates. Busy weeks produce more buyers than quiet ones. Before an agent pays anything, we run their market and send a free sample so they can see what a week looks like.

Questions