Patricia's father, Frank, called her one day and told her he had suffered a stroke. He was paralyzed from the scalp down. He asked her to come live with him and take care of him. He told her that if, and only if, she took care of him for the rest of his life he would leave her his entire estate in his will, including the house. He emphasized that Patricia could only accept this offer by doing what he asked, and that she could not accept merely by promising to take care of him. Patricia sold her home at a $530,000 loss and moved across the country to take care of Frank for the rest of his life. She gave up her $500,000 per year practice as a brain surgeon and nursed Frank 24 hours a day, seven days a week. Similar care in a nursing home would have cost $75,000 per year. After ten years, Frank suddenly said, "I revoke! Get out of my house." Patricia sadly moved into a homeless shelter. A month later Frank died, leaving his estate, consisting of the house and 500,000 shares of Google, to the New Age of Peace, for the Prevention of Child Abuse.

1. What type of contract did Frank and Patricia have?
2. Did Frank breach the contract?
3. What are Patricia's remedies at law relative to the house?
4. What are Patricia's remedies for enforcement at equity?
5. What are Patricia's remedies in alternative to enforcement?