I completely understand your frustration. You have to be careful with those pest control chemicals. I know someone who's yorkie died because the maintenance people at her apartment came in when they weren't supposed to and sprayed everywhere, including in her dog's food bowl
I'm afraid of someting like that happening so I don't allow anyone to spray my townhouse. I also have an ant problem in the spring and summer every year so I buy ant traps (those disks) and put them in all rooms in areas where Max and Abbie can't get them. It's not perfect but it seems to get rid of most of them.
I hope Sadie is ok