# sales_history # sales_history The recorded transfer history for a property: amount, date, and the type of each transfer. The question it answers ## What are the comparables, really? A recorded deed is the legal source of truth for a transfer: instrument type, consideration, parties, and date. That is what separates an arm's-length sale from a quitclaim between relatives, an estate transfer, a foreclosure, or an investor flip. A comp set that silently includes non-arm's-length transfers is biased before the model sees it. Other classes answering this question ## Why it matters One row per transfer, linked to the deed that recorded it. Holding the full history rather than the last sale is what allows a consumer to filter to arm's-length transactions before computing anything, and to see a flip pattern that a single most-recent-sale field hides. The source dictionary carries no definition for this class. ## In practice The transfer and the document are separate classes because the cardinality differs: one deed can convey several parcels, and one parcel accumulates many deeds. Linking them rather than embedding is what keeps both directions navigable. ## Properties | Property | Type | Definition | | --- | --- | --- | | `source_http_request` | `object` | HTTP request configuration for retrieving this data. | | `request_identifier` | `string | null` | Identifier value that should be substituted into the source HTTP request to retrieve this specific data. | | `ownership_transfer_date` | `string | null` | The date of the transfer of ownership of real property as recognized in the jurisdiction in which it is located. | | `purchase_price_amount` | `decimal` | The total dollar amount paid by the borrower for the property. The purchase price is presented on the offer to purchase. | | `sale_type` | `—` | `ProbateSale``ShortSale``CourtOrderedNonForeclosureSale``ReoPostForeclosureSale``TrusteeNonJudicialForeclosureSale``RelocationSale``TrusteeJudicialForeclosureSale``TypicallyMotivated` | ## Provenance and coverage A record of this class is validated against the same definition whatever jurisdiction it came from, which is what makes two counties comparable without a per-county adapter. A jurisdiction appears below only where a committed configuration serves this class's surface. - Lee, Florida - Palm Beach, Florida - Miami-Dade, Florida - Orange, Florida - Santa Clara, California How a new jurisdiction is brought online