Electronic signature for estate agencies

Real estate, a sector with high contract volume

Sale mandates, management mandates, leases, offers to purchase, inventory reports, amendments: an estate agency handles hundreds of documents per month. Electronic signature drastically shortens transaction cycles.

Commonly signed documents

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

• Lettings management mandate

• Residential lease (unfurnished, furnished)

• Commercial lease, professional lease

• Offer to purchase / promise to sell (if entrusted to the agency, otherwise notary)

• Entry and exit inventory reports

• Surety guarantee contracts

• Lease amendments (tenant change, rent adjustment)

Recommended level

For a mandate or a lease, advanced signature (AES) is the standard — significant contractual issue, long-term tenancy relationship. Inventory reports can be in SES.

Offers to purchase generally go through the notary who issues their own qualified signature.

Benefits for the agency

• Mandates signed remotely: no need for an appointment 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 + surety + inventory reports in one place

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.

Common errors

• Sending a lease without mandatory annexes (EPC, surveys, information notice)

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

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

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

Practical example: 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: AES dispatch of lease + annexes + surety guarantee (3 signatories: 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, inventory reports, advanced signature by default, integrations with major real estate software, and long-term archiving compliant with legal retention periods.

Discover the Certyneo electronic signature solution

FAQ

Can a residential lease be signed electronically?

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

Must surveys be attached?

Yes, EPC, ERP, asbestos, lead depending on the case — in the same envelope.

Can an offer to purchase be signed online?

Yes if it is a private deed offer. For an authentic deed, see notary.

Can the surety guarantee sign remotely?

Yes, provided you use AES (strong identification).

How long should a lease be kept?

Duration of lease + 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.