*Complete SOW attached* I am building a full-featured marketplace where owners of both residential and commercial properties can publish listings, buyers can search and signal interest, and an admin dashboard lets me review uploaded documents before anchoring each verified listing on-chain for tamper-proof proof of authenticity (NFT minting or a hash stored on a public ledger). Core user flows • Owners: sign up, complete KYC, create listings with photos, videos, and supporting documents. • Buyers: intuitive search and filtering, the ability to “favourite” or otherwise express interest in a property, and direct access to the blockchain-stamped document set once a listing is verified. • Administrators: role-based panel to inspect deeds, titles, permits, then press a single “verify” action that triggers smart-contract interaction and permanently records the proof. Technical expectations • Modern stack—React or similar front end, Node/TypeScript or comparable back end, Solidity (or Rust) smart contract, IPFS/S3 for file storage, and a mainstream chain such as Ethereum or Polygon. • Secure authentication, GDPR-compliant data handling, and audit logging baked in from day one. • Clean API so mobile apps can be added later, plus automated tests and CI/CD pipeline. Deliverables 1. Functional web application with separate owner, buyer, and admin roles. 2. Smart contract(s) with source, migration scripts, and verifiable deployment. 3. Documentation & walkthrough video covering setup, contract interaction, and future scaling. 4. Post-launch support window for bug fixes. Acceptance criteria • A test listing passes through the full flow and appears on chain. • Buyers can view the on-chain proof and associated files without exposing private data. • Lighthouse or similar audit returns no high-severity security findings. When you reply, focus on prior experience delivering Web3 marketplaces or document-verification platforms; links or brief case studies are ideal.