Getting paid · 6 min

The Arizona Preliminary 20-Day Notice: Who, When, and the Fourth Party

What ARS 33-992.01 requires before an Arizona mechanics lien is possible — the four people who must be served, the twenty days, the two ten-day duties the notice puts on the owner, and the thirty percent rule that quietly voids a notice nobody thought about again.

Why this notice exists

Section 33-992.01(B) is blunt about what the preliminary twenty day notice is: serving it is "a necessary prerequisite to the validity of any claim of lien". Not a courtesy, not a best practice. Without it there is no lien to record, however clearly you are owed.

The one exception in the same subsection is narrow: a person performing actual labor for wages does not have to give it. Everybody else furnishing labor, professional services, materials, machinery, fixtures or tools does.

Four people, and the fourth is the one that gets missed

Subsection (B) names the owner or reputed owner, the original contractor or reputed contractor, the construction lender if any, and — this is the one — the person with whom the claimant has contracted for the purchase of those items.

If you have worked in California, that fourth party is a trap. A California preliminary notice names the person who hired you on the face of the document; it does not require you to serve them. Arizona requires service on all four. A notice that went to three of them is a notice with a hole in it.

Subsection (G) is the relief: one notice covers everything you furnish for that building, and you do not send a fresh one every month. Two things break that, and they are in the next two sections.

The twenty days, and what a late notice still covers

Subsection (C) sets the clock: not later than twenty days after the claimant has first furnished labor, professional services, materials, machinery, fixtures or tools to the jobsite.

Subsection (E) is the part worth knowing before you panic. A person who did not give notice in the first twenty days is not shut out — they may give one later, and they are then entitled to a lien for what was furnished within the twenty days before service, and anything after it. Late costs you the front of the job, not the job.

Timing runs on service, and subsection (F) says service is complete at the time of the deposit of notice in the mail. Not on arrival. A notice posted on day nineteen and delivered on day twenty-three is on time.

What the notice must contain

Subsection (I) takes the fear out of the typography: a notice that is otherwise compliant is not defective because the bold-faced type or the oversized type was not used. The words have to be there. The formatting is the statute followed properly, not a trap waiting to spring.

The thirty percent rule

Subsection (G) says the one-notice-covers-everything rule holds unless the actual estimated total price exceeds by thirty percent or more the total price in the notice you already gave. Go past that line and notice requirements must be met for the additional work.

This is the rule that voids notices served perfectly. A supplier estimates forty thousand in February, the job grows, and by August they have furnished sixty-five — sixty-two percent over — with one notice on file from February covering a number nobody looked at again. Subsection (H) gives some room in the other direction: a notice is not defective because later work exceeds the estimate by less than thirty percent.

Estimate generously, and diary the figure rather than the notice.

Proving you served it

Section 33-992.02 puts the proof in the recipient's hands first. The acknowledgment of receipt goes out with the notice — subsection (D) of 33-992.01 says it is inserted in the form itself — and a signed one coming back is your proof.

When it does not come back, and it often does not, the fallback is an affidavit by the person who did the mailing, showing the time, place and manner, available once thirty days have passed from the date of mailing. Attach the certificate of mailing to it, or the certified or registered mail receipt.

So the certificate is not paperwork for its own sake. It is the thing the affidavit is built on, which is why the service method matters as much as the date.

The habits that keep the right

This is general information about Arizona law, not legal advice, and the law changes. Deadlines here are as the Arizona Revised Statutes state them; how they apply to a particular job depends on facts a lawyer would need. Confirm with an Arizona construction attorney before relying on any of it.