Electronic Signature for Real Estate Agencies

Real estate, a sector with high contract volume

Sale mandates, management mandates, leases, agreements, property condition reports, amendments: a real estate agency handles hundreds of documents per month. Electronic signature drastically shortens transaction cycles.

Commonly signed documents

• Sale mandate (exclusive, simple, semi-exclusive)

• Lease management mandate

• Residential lease (unfurnished, furnished)

• Commercial lease, professional lease

• Purchase agreement / promise to sell (if entrusted to the agency, otherwise notary)

• Property condition reports on entry and exit

• Joint guarantee contracts

• Lease amendments (tenant change, rent adjustment)

Recommended level

For a mandate or lease, advanced signature (AES) is the standard — significant contractual stakes, long-term rental relationship. Property condition reports can be in simple electronic signature (SES).

Purchase agreements typically go through the notary who issues their own qualified signature.

Benefits for the agency

• Remotely signed mandates: no need for appointments at the agency to collect the seller's signature

• Accelerated leases: a file validated in the morning, lease signed in the afternoon, tenant in place the next day

• Fewer no-shows: the signature rate increases significantly when the tenant can sign from their sofa

• Centralised complete file: lease + guarantee + property reports in the same space

Integration with real estate software

Agencies use Apimo, Hektor, PERISCOPE, Immofacile. Modern electronic signature interfaces via API to generate documents, send for signature, and retrieve the signed PDF in the client file.

Frequent mistakes

• Sending a lease without mandatory annexes (Energy Performance Certificate, diagnostic reports, information notice)

• Using SES for an exclusive mandate (weak evidence in case of dispute)

• Not retaining the audit trail (lease duration + 5 years)

• Having the lease and guarantee signed separately (risk of inconsistency)

Concrete case: signing a lease remotely

An apartment in Paris assigned to a tenant based in Lyon. Journey:

• Monday morning: file validated by the agency

• Monday 10am: sending via AES the lease + annexes + joint guarantee (3 signers: tenant, guarantor, landlord)

• Monday 3pm: all signed

• Tuesday: key handover

Three weeks saved compared to the traditional paper cycle.

How Certyneo helps you

Certyneo offers a solution tailored to real estate: pre-configured templates for mandates, leases, property reports, advanced signature by default, integrations with major real estate software, and long-term archiving compliant with legal duration.

FAQ

Can a residential lease be signed electronically?

Yes, the ALUR and ELAN law do not prevent it. AES is recommended.

Must diagnostic reports be attached?

Yes, Energy Performance Certificate, ERP, asbestos, lead depending on the case — in the same envelope.

Can a purchase agreement be signed online?

Yes if it is a private deed purchase agreement. For an authenticated deed, contact the notary.

Can the joint guarantor sign remotely?

Yes, provided you use AES (strong identification).

How long should a lease be kept?

Lease duration + 5 years minimum, ideally 10 years.

Conclusion

Electronic signature has become a standard in real estate. Agencies that have adopted it handle more files, faster, with less friction for their clients.

Try Certyneo to send, sign and track your documents online simply, quickly and securely.