Final answer:
To convey the entire property, a warranty deed must include an accurate legal description of the land.
Step-by-step explanation:
In order to convey the entire property, the warranty deed must include an accurate legal description of the land. This description identifies and boundaries of the property, ensuring that the parties involved know exactly what is being transferred. Other elements such as a notary's seal and signature, an accurate description of the house and improvements, and Fred's and Ethel's signatures may be necessary for the validity and enforcement of the deed, but they are not essential to convey the entire property.