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Verify seller handoffs from Realtor.com so no one re-enters details

You’re the security / reliability engineer. Your team is in the room. Printed Oct 15, 2026.

The marketplace handoff must preserve seller momentum without importing an untrusted session.

Realtor.com referrals protect reach at the decision moment, while verified request origin protects property data and offer integrity.

Who you’d be doing this for

“I already entered the address once, and now I’m wondering where that information went.”

Francois Wagner · Home Seller

A homeowner arriving through Realtor.com to request a cash offer before deciding whether to list traditionally.

What is at stake

A new marketplace path can carry property details into an offer request without the protections of an existing seller session. You have to weigh a low-friction first step against proof that every request is genuine and traceable.

Why it isn’t already fixed

Every obvious fix costs something else. That’s the part you’d have to decide.

  • seller momentum vs request provenance
  • shared API simplicity vs referral-specific controls
  • launch speed vs dispute traceability
  • minimal data retention vs investigation evidence

Why Opendoor

Cash Offer now meets homeowners through the Realtor.com seller marketplace, where a trustworthy first request determines whether a seller continues toward a scheduled closing.

Written with these in mind

application security builderreliability-minded platform engineersecurity architect for customer-facing systems

Not your kind of problem? 6 more at Opendoor, or browse every organization.

This is the setup. The work is inside.

Running it puts you in the room: the full situation and its constraints, stakeholders who push back in their own words, and the decisions that are yours to make. What you produce becomes a Day One Plan — work you can show someone instead of describing.