1. Communication and negotiation: Have an open dialogue with her husband and his father, and express the wish that her name can also appear on the property ownership certificate. Explain the reasons and try to find a mutually acceptable solution.
2. Seek legal advice: If communication and consultation fail to solve the problem, you can consult a professional legal adviser to understand your legal rights and choices. According to local laws, you have the right to add your name to the real estate license.