Here's the story, I'm supposed to sublease an apartment come January in Boston. Back in June, I signed a sublease agreement with the kid currently living in the apartment. He was supposed to go home for an internship in January, I was going to move in, everything was peachy. Come September, he changed his mind and decided he wanted to stick around next semester and he asked me if I was willing to work something out. I said, sure I'm flexible, you want to change the sublease so you have to do the grunt work (find another apartment), as long as you find a place within the same distance from campus, same price, and with people I know (same conditions as the place I was gonna sublet) we can work something out. It's been two months, he hasn't been able to find anything and from what I've gathered at this point has given up on the apartment hunt and is trying to weasel his way out of the sublease agreement. My question is, if he (or I) don't find a place by January, would he be obligated to pay any difference in rents between his place and the place I find, and any additional costs (commuting, etc.)?