Work starts on my condo

Finally, the developer has done what he is supposed to by law, and sent a worker to repair the defects in my condo. They told me he'd be here at 10am but the doorbell went at precisely 8.25am. I was awake but still in bed and considering what the day held and had to jump up and get dressed in a hurry.

I had sent the list of problems to the developer at least 6 times, not to mention the times the RE agent had sent it. So when the workman arrived I asked did he have the list? No, senora. Have you seen the list? No, senora. Ay ay ay, I wonder why I bothered. Oh well, come in and I'll fire up the laptop and then walk you around.

It turns out that this guy is a general handyman and tile specialist. He speaks the usual lazy spanish from this part of Mexico where the words come out fast and slurred, the letter "s" is mostly dropped, and there's little intonation. Which means I understand very little of what he says. Fortunately he seems to understand my spanish very well, so that's a bonus. So I take him around the condo tapping tiles to show him which ones sound hollow. He agrees they have been badly laid, using only glue without a solid cement base, and not enough glue at that.
Eventually he decides to start in the loungeroom with a hammer and chisel. He has to remove not only the tile but the badly-done glue underneath. It's an excruciatingly slow job and a cloud of dust settles over the condo. With sign language I suggest a jackhammer would be a lot quicker, perhaps he could hire one? Come to think of it I have never seen a tool hire place here. All the tools would no doubt get stolen pretty quickly, it probably wouldn't pay to run this business.
I ask if he has someone to help him, I thought I heard him mention a boy? No, he says, they won't pay for it, he has to do it all himself. I know that construction workers get paid no more than 200 pesos a day (about $A16), so surely it makes more sense to pay him and his labourer than to drag it out with him only?
Although he starts strongly, it isn't long before he's flagging. The temp here is still somewhere around 30 and the humidity at least 60%. He finishes 6 tiles in the dining room and moves to the front bedroom. He removes 3 tiles from the balcony, and then another 3 in the bedroom, but he now seems to be spending more time sitting and resting than he does hammering. When I walked past he was holding his back - this doesn't augur well.
I do feel sorry for him, it's back-breaking work. And he has to take the broken tiles downstairs and they are not light!
He then asks if he can sleep somewhere in the building as he lives in Cancun. I tell him I don't have the keys to any other apartments.  I don't say it but I don't intend to offer hospitality to a man I don't know from a bar of soap. This is starting to sound like the other guy the RE agent sent, who kept complaining that he was hungry and wanted me to give him money for food.
I jump on the laptop and send an email to the developer. This is crazy, I tell him, at this pace it will take a month just to get the tiling done. Surely letting him bring his labourer will speed things up for both of us, it makes sense to get this over and done with. And I really have better things to do that sit around at home for weeks. I don't intend to give up a month of yoga classes I have already paid for.

So far, no response. Stay tuned. I know this is Mexico and I need to have patienza, but for a month???