They do, though it can change from contract to contract, and the law has all sorts of complicated bits and add-ons about this. Unfair eviction is illegal certainly, but I don't think they'll want to argue the case even if it has sufficient merit to go before a court. The bad news is they have a toddler and a new born. The good news is they have good jobs and the financial potential to buy. It's upheaval, but hopefully no worse than that.