The United Way of Central Massachusetts is helping extend the hotel stay for 100 people who lost their homes due to a roof collapse at a Worcester apartment building.The exterior roof of the Mill Street building collapsed on July 15 into a third-floor unit, which then collapsed into a second-floor unit. No one was hurt, but the residents of the building's 32 units were all displaced. Three weeks later, some of the displaced residents said they are still receiving utility bills for their apartments. Temporary housing paid for by the city and local groups will likely run out this month. "It's a difficult situation," said attorney Craig Ornell, who is representing a group of the building's residents. "Nobody was hurt but, I mean, it's still frustrating. Anxiety. Because, yeah, we're not prepared for this," said resident Isaac Frenpong. It could be up to a year before any residents are allowed to return, which means more than 100 people must find new housing at a time when rental prices in the area are on the rise.“Rents are skyrocketing and the vacancy rate is really low. It’s just so hard to navigate that system," said Leah Bradley of the Central Massachusetts Housing Alliance, a group that is searching for temporary housing for the displaced residents.According to an August report from ApartmentList, Worcester rents have increased 1.3% over the past month, and have increased sharply by 17.5% in comparison to the same time last year.In court Thursday, residents and the owners worked to negotiate next steps."We're working on getting moving and storage for all these people," said Ornell. "Hopefully, their stuff will be someplace that they want to be. As well as preserved and protected."