without notice. Is that legal? I had an approved rental agreement & Move in date. But now they said i cant move in anymore. Is that legal? I need some help! i will be homeless in a week!!

I'll assume you are in the USA.Until the landlord signs the lease and delivers it to you, or you agree with the landlord in person on a leae (if it's less than three years in duration) you have no lease and no right to occupancy.