Stucco is a bad trade to find for some reason. On my house they were the same way, they wanted like 30% after the scaffold and Tyvek was up (this was before the changes to how it's done), but asked for it after half the house was like that and I told them to pound sand, get some work done if you want money or pack up and leave. I did give in a bit and gave a fair bit of small draws as work was done, like I would go there as they were finishing for the day and pay them. Turns out it was still a bad idea, I found out after an employee asked me when I was going to pay them because they weren't getting paid, by that point I only owed them a few grand. Turns out the owners were keeping all the money, didn't pay employees much if anything, some employees even paid for minor material. It was a shitshow. I also had the RCMP show up because they wanted the owner for beating his wife, ironically the owner had showed up just days ago with a bad shiner, I think she beat his a$$, she looked like the type to not take chit from anyone. I had employees, the guy, his wife everyone showing up for months wanting money and a crappy stucco job with not enough left to fix it properly. Did I mention the name on the contract the owner signed with me was a fake name too? Fawk I hate sketchy people.