and as our station katu in portland, oregon, reported, homeowners with problems and defects claim their builder seems to be waiting them out until their first year warranty expires. >> you just get that sense, they're dragging this out so my year runs out, then they're going to dump me. >> have you ever heard of that happening? >> no, sir. >> not to this point? >> not to this point. >> i'm the first person to mention that to you? >> yes, sir. >> that's not been an issue in this industry? >> no, sir, not to my knowledge. >> reporter: more and more owners come to realize often when it's too late the contract they signed keeps them from most builders insist on what's called mandatory arbitration, whose outcomes generally cannot be appealed and are kept secret. >> they like arbitration because it favors them. >> even though it's supposed to be neutral and unbiassed? >> even though it's supposed to be neutral and unbiased. >> reporter: this lawyer served for years an an arbitrator in construction defect case. he says arbitrate hoarse come down hard on the builders are unlikely to be hired ag

a reporter from our afill idea katu reports. what starts as peaceful march became a riot in downtown port dan the thousands of protesters filled the city streets, bridges, clashing with drivers as tempers flared. >> you are being disrespectful. [ blank ]. >> riot police moved in and made arrests and protesters fought among themselves to keep it peaceful. >> i would say well over 9% of people i saw were very peaceful and many cases condemned the volence. there are anarchist groups in the crowd creating an unsafe environment. >> this area is restricted access area. the gathering is unlawful. >> riots continued into the early morning on friday with more demonstrations planned later in the day. no doubt everyone hopes for more peaceful outcome. >> we are supposed to meet up like yesterday and unite and go on another peaceful protest but it did not work out. now an update from abc7. >> a video of a guy with a gun at the portland protests, and i is worked on getting the video that just came in. the man iserring a gun coming from the b