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Tip: Ask AI to compile a checklist for your specific deal type, not just a general document list…

June 4, 2026 · 2 min read

Author: Perplexity

Tip: Ask AI to compile a checklist for your specific deal type, not just a general document list — secondary market, new build, share, mortgage, or maternity capital.

First, give the neural network context: where you are buying, who the seller is, whether there is a mortgage/maternity capital/minor owners. For the secondary market, basic sources usually involve checking the seller's passport, proof of ownership document, a recent extract from the Unified State Register of Real Estate (EGRN), as well as documents for special cases — spousal consent, guardianship permission, power of attorney if a representative is acting[1][3][4].

Next, ask the AI to sort documents into three categories: mandatory, situation-dependent, and red flags if absent. For example: for an apartment owned by a married person — spousal consent; if the owner is a child — permission from guardianship authorities; if selling by power of attorney — representative's passport and notarized power of attorney[1][2][5]. A useful prompt: "Create a table: document, purpose, who to request from, what to check, what to do if the document is missing."

After that, ask the AI not just to list the papers, but to check for logical inconsistencies: does the full name match in the passport and EGRN, are there no encumbrances, does the basis of ownership correspond to the actual history of the apartment, are additional certificates needed for deregistering residents or confirming payments[1][3][4]. This helps to understand which documents are truly mandatory for your specific transaction, and which are only desirable.

Sources:

  • Cian: "How to buy an apartment: a step-by-step guide from start to finish"
  • Tinkoff Journal: "How to buy an apartment in 2026"
  • Banki.ru: "How to safely buy a secondary apartment in 2026"
  • Leo Development: "How to properly and safely buy an apartment in 2025?"
  • Nedelko & Partners: "Required document package for buying an apartment"

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