Hello Customer (name blocked for privacy) and welcome to Just Answer.
No, if the married couple are not the owners or rightful representatives of the home, they would not have had the authority to enter into a binding contract for the home.
However, the children of the landlord do not want to allow you to move in, want to change the conditions of the lease significantly, and by doing so, they have caused you hardship, you may be able to pursue the married couple for misrepresentation for entering into a contract for the property. I recommend that you contact the Lawyer Referral Service to explore your options regarding this matter. The lawyer referral service will provide a 1/2 hour consultation for $25. Click here for more information
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