We are trying to establish our TX Notice to Owner process. We are an engineer and usually sub to an architect, thus required to send a 3rd month (and sometimes 2nd month) notice. It seems the notice is for work performed in a specific month. Our contracts are often for a fixed fee with phased or progressive billing (ex: fee is $100,000 billed as 20% at Schematic Design completion, 40% at Design Documents completion, 30% at Construction Documents completion, and 10% at Construction Administration) so what is billed and owed may or may not line up exactly with "labor" that month. How should we fill out this form? If the total we put for "work performed" in a specific month is what we're allowed to bill that month per our contract, but doesn't line up with hours worked, does that create problems with our notice?