Electronic signature for real estate agencies

Real estate: a sector with high contractual volume

Sale mandates, management mandates, leases, contracts of sale, 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, standard, semi-exclusive)

• Rental management mandate

• Residential lease (unfurnished, furnished)

• Commercial lease, professional lease

• Contract of sale / promise of sale (if entrusted to the agency, otherwise notary)

• Entry and exit condition reports

• Guarantor surety contracts

• Lease amendments (change of tenant, rent adjustment)

Recommended level

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

Contracts of sale typically 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 + guarantee + condition 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 into the client file.

Common mistakes

• Sending a lease without mandatory attachments (EPC, diagnoses, information notice)

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

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

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

Practical case: signing a lease remotely

A Parisian flat assigned to a tenant based in Lyon. Process:

• Monday morning: file validated by the agency

• Monday 10am: sending by AES of lease + attachments + 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, condition reports, advanced signature by default, integrations with major real estate software, and long-term archiving compliant with legal duration.

Discover Certyneo's electronic signature solution

FAQ

Can a residential lease be signed electronically?

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

Must diagnoses be attached?

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

Can a contract of sale be signed online?

Yes if it's a contract of sale under private deed. For an authentic deed, see notary.

Can the guarantor surety sign remotely?

Yes, provided an AES is used (strong identification).

Duration of retention for a lease?

Lease duration + 5 years minimum, ideally 10 years.

Conclusion

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

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