Witnessing and Guarantors*

Witnessing the Signing of a Tenancy Agreement
✓ PIMS Renters’ Rights Compliant

Signing is not just an admin step. If the tenancy agreement, guarantor deed or witness details are handled badly, the landlord may later discover that the document is disputed or that the guarantor protection cannot be enforced.

Does every tenancy agreement need a witness?

A standard tenancy agreement does not always need to be witnessed. However, witnessing can still provide useful evidence that the correct person signed the document and that the signature was not added later or disputed.

The position is different where a document is signed as a deed, especially where a guarantor is involved. A guarantor deed should be signed in the presence of an independent witness and the witness should add their details.

PIMS warning — witnessing mistakes are expensive

PIMS has seen cases where landlords believed they had a guarantor, only for the guarantor to deny signing, challenge the document, or argue that the guarantee was not properly executed. If the witness is inappropriate, missing, connected to the transaction or unable to give evidence, the landlord’s protection may be weakened or lost.

Who should be the witness?

Good witness practice

  • The witness should be aged 18 or over.
  • The witness should be independent.
  • The witness should have no interest in the tenancy.
  • The witness should be physically present when the person signs.
  • The witness should add their full name, address and signature.

Avoid weak witnesses

  • A spouse or close relative.
  • The tenant witnessing the guarantor.
  • The landlord witnessing the tenant.
  • Someone who benefits from the agreement.
  • Someone who was not present when the signature was made.

Which documents matter most?

Tenancy agreement

All tenants should sign the tenancy agreement before the tenancy starts. A witness may not always be legally required, but a clear signing record helps prevent disputes.

Guarantor deed

Guarantor documents are high risk. They should normally be signed as a deed, witnessed correctly and completed before the tenancy starts. This is where many landlords lose protection.

Inventory and sign-off documents

Inventories and check-in records should be signed by all tenants to confirm condition and reduce later disputes over damage, cleaning or missing items.

Guarantors — the biggest witnessing risk

1. The guarantor must be properly engaged

A guarantor should see the tenancy agreement and understand what they are guaranteeing. If the guarantor later says they were not given the agreement or did not understand the commitment, the landlord needs a strong evidence trail.

2. The guarantor should sign before the tenancy starts

Landlords should not allow the tenant to move in and then try to collect guarantor signatures later. Once the tenancy exists, arguments can arise about whether the guarantor received consideration or whether the deed was executed correctly.

3. The witness should be independent

A guarantor’s witness should not be the tenant, landlord, agent, relative or anyone with an interest in the transaction. The safer approach is to use a genuinely independent adult who can confirm the guarantor signed.

4. Keep the evidence

Keep the signed guarantor deed, witness details, copies of the tenancy agreement provided to the guarantor, and any email or message trail showing the guarantor was engaged before the tenancy was granted.

Common signing and witnessing mistakes

“The guarantor can sign later.”

This is risky. A guarantor should normally sign before the tenancy starts and before the tenant is allowed into occupation.

“A family member can witness it.”

A witness should be independent. Family members, spouses and people connected with the transaction create avoidable challenge points.

“The agent witnessed everything.”

Agents should be cautious about witnessing documents where they are connected with the transaction. For guarantors, independence matters.

“We cannot find the witness details.”

If the guarantor later disputes signing, missing witness details can badly weaken the landlord’s position.

PIMS signing checklist before the tenancy starts

✓ Tenants

  • All tenants named correctly.
  • All tenants have signed.
  • Each tenant has a copy or access to the agreement.
  • Signature date recorded.
  • Agreement signed before keys are released.

✓ Guarantors

  • Guarantor has seen the tenancy agreement.
  • Guarantor deed completed before occupation.
  • Guarantor signs in front of an independent witness.
  • Witness adds full details.
  • Evidence retained with the tenancy file.

Use the PIMS agreement and complete signing properly

The PIMS tenancy agreement includes signing and witness sections to help landlords create a better evidence trail. Do not release keys until the agreement and any guarantor documents are completed correctly.

PIMS final rule:

Sign first, witness properly, keep evidence, then release keys. A missing or weak witness may not matter until the day the landlord needs to enforce the document — and by then it is too late.