the lead lawyer sat down with abc15 investigator dave biscobing. just wait until you see what dave has uncovered. >> reporter: this law firm will be arguing issues that could have a permanent impact not only on ada cases in arizona but across the country. that is why we decided to take a closer look at this this is john. right now it is his job to prove why advocates for disabled injuries have the right to file lawsuits. >> there's a lot of problems with ada compliance. >> reporter: we uncovered many of the lawsuits are over parking lot signs. a few inches too low, they demand thousands to session. >> are you the lead attorney? >> my name is on this. i think i know where you are going with. this i did actually defend the that? he defended businesses sued by this earlier, and now he has switched sides. is that a problem? >> i think it's given me insight. if these were businesses that were segregating against colored people would that be okay? >> reporter: we asked him to respond to specific allegations. >> ada serial lawsuit let gaunts are exploiting

dave biscobing, abc 15 news. >>> well, it's the last day of the monsoon. we're just hours away from it ending, and so far it's been a below averageman season. the totals -- average monsoon season. the totals not likely to go up in the next few days. sky harbor is just shy of two and a half inching, nearly quarter inch below average. the only month above average was the month of august with over an inch and a quarter of rain. the wettest locations across the valley, much more for some of you. state route 51 in thomas got over five inches, as did i-17 and camelback. here's what we're tracking at this hour. not much left in the valley. just a few spotty showers starting to clear out farther florence junction. we'll keep tracking them here for you, and in the meantime we dry things out into the weekend, and we'll talk about what to expect hour by hour tomorrow coming up. >>> there's a few reasons an athlete can get disqualified from a competition, but for lip moisturizer? hear from the athlete who's lips cost his big time. >>> and the arsonist caught on camera