I so feel for you! Please listen and try what I am advising. My family lives in Flatbus and we suffered from them because we live in a building. Baruch Hashem, we did get rid of them…. without all the headaches of packing everything up and washing everything. I had no energy for all of it with a baby and so we did it with shortcuts and they worked!!!
First of all, throw out your beds (and any sleeping spaces, like a couch, etc.) and get new mattresses and keep them in the plastic or get plastic for them eventually. Throw out rugs unless they are extremely expensive. Wash curtains and bed linen of course… and have these guys come and spray everywhere. You may have to get a hotel room for a day, because everything takes time to dry.
These guys are very nice and they understand what you are going thru so don’t make you jump thru hoops… The guy’s name is Gene 718-382-1363. It’s a company. I hope the moderator allows this! I am so exhausted and writing with one eye closed but had to tell you. I know how horrible this is. Only people that had or have it can understand. The sleepless nights, etc…. we used to migrate all over the apartment. What a life it was. If you do what I am telling you, you should be fine I’YH. Hatzlacha Rabbah!