Is it legal to do a rent increase if a spouse moves in?I recently signed a lease in July for myself and my three children. My spouse recently moved in September and after notifying my landlord he said there would be a rent increase, is this legal?October 18 2012 - Del City00YesReport a ProblemProblemSelect oneOffensive contentIrrelevant contentSpam (pure self-promotion)OtherDetailsYour emailPlease enter a valid email address.Submit CancelContent flaggedWe will review this content. Thanks for helping make the site more useful to everyone. To learn more, read Zillow's Good Neighbor Policy.We're sorry. This service is temporarily unavailable. Please come back later and try again.