Notify a lien claimant under subsection 19(3) without retyping party and project details

Owners or other parties giving notice to a lien claimant under subsection 19(3) repeat their identity, lien claimant name and address, and premises particulars on every Construction Act Form 4 notice. This guide is an example of storing them once in hivi.

Official form and source

Start from the official source and always use the current version — form numbers and links can change:

• Service page: Construction Act — ontario.ca
• Form (Central Forms Repository): Form 4 - Notice to Lien Claimant Under Subsection 19 (3) of the Act Construction Lien Act — cla-4

What this form is about

Form cla-4 is Form 4 — Notice to Lien Claimant Under Subsection 19(3) of the Construction Act — confirm service rules on ontario.ca.

Before you start: what to gather

• Notifying party legal name and address for service.
• Lien claimant name and address.
• Premises or project address and improvement description.
• Contract and lien reference — confirm with counsel.

Confirm the current process on ontario.ca.

How hivi makes it faster

1. Save it once. Store your claimant and lien claimant business names and addresses in your hivi profile.
2. Keep documents ready. Upload supporting documents to hivi Files so you are not searching at form time.
3. Autofill the form. Use the hivi Chrome extension on a web form, or fill a PDF from your saved profile inside hivi.
4. Review and submit yourself through the official channel.

Why do it in hivi

Related Ontario forms repeat the same personal details. Captured once in hivi — stored in Canada, with AI on its own servers — every form starts mostly complete.