Counting the clock that public marketing starts on a listing
The clock does not start when the listing agreement is signed. It starts when the property is marketed publicly, and the evidence of that moment lives in a social post, in a photograph of a sign in a front yard, or in an email that went to more than one brokerage. Counting business days from a known start is trivial. Knowing the start is not, which is why this is built as a watch over the marketing surfaces of the brokerage. Delayed marketing also needs a signed seller consent on file, so the check has two halves.
A brokerage runs on dates that were calculated by a person reading a contract, and on leads that arrive in a different shape from every portal.
The listing data is already structured. It lives in the MLS, and since RETS was retired the modern way to reach it is the RESO Web API, which returns OData against the RESO Data Dictionary. Almost nothing else in the transaction is structured. The purchase agreement arrives as a signed PDF that was structured data inside the forms platform ten minutes earlier and got flattened on the way out.
- MLS via the RESO Web API
- dotloop
- Slack
When this is the wrong thing to build
Pick something else if every listing of yours goes active on the day of signature, since there is no window left to police. It also fails where agents market from personal accounts you do not administer, because the surface you cannot see is the one that generates the citation.
The constraint that shapes it
Negotiating, advising on price or terms, and soliciting are licensed activities performed under a supervising broker. More on how this sector works.
Run the rules of the other side first, so the submission does not come back. Read what this shape is, or start from one of these.
- Catching a filing rejection before the clerk does
- Catching the invoice lines an e-billing gate will reject
- Checking that a technician may legally take the call
- Filing a backflow test report the purveyor will accept
- Checking a trial balance against the tax grouping before import
- Catching the rejects a return will come back with
- What counts as public marketing under clear cooperation?
- Does a coming soon sign in the yard start the MLS clock?
- What paperwork does a delayed marketing exempt listing need?
- How do I monitor agent social posts for listing policy violations?
- Is an office exclusive listing still allowed?
Back to real estate, or see how this is priced and scoped.