please answer

Keller offered Williams $25,000 to purchase the southwest comer of 10 th and Main Streets conditioned upon a "phase one" environmental survey report evidencing no contamination. Keller intended to purchase the southeast corner of 10 th and Main Streets, but he got confused when he made the offer. Williams accepted Keller's offer. The inspector conducting the "phase one" survey found no contamination on the southwest corner; however, researching the history of the location and surrounding properties, he learned that a former Texaco station once occupied the northeast corner of the intersection, that the underground tanks had never been removed, and that hydrocarbon pollution from gasoline leeching through the soil and under the street likely tainted the property located on the southeast corner. Keller now realizes his error and seeks to avoid the contract. (NOTE; it may help to draw the intersection of 10 th and Main Streets to orient yourself to the lots referenced.) What legal issues are presented by this fact situation? What advice might you offer the parties? Keller offered Williams $25,000 to purchase the southwest comer of 10 th and Main Streets conditioned upon a "phase one" environmental survey report evidencing no contamination. Keller intended to purchase the southeast corner of 10 th and Main Streets, but he got confused when he made the offer. Williams accepted Keller's offer. The inspector conducting the "phase one" survey found no contamination on the southwest corner; however, researching the history of the location and surrounding properties, he learned that a former Texaco station once occupied the northeast corner of the intersection, that the underground tanks had never been removed, and that hydrocarbon pollution from gasoline leeching through the soil and under the street likely tainted the property located on the southeast corner. Keller now realizes his error and seeks to avoid the contract. (NOTE; it may help to draw the intersection of 10 th and Main Streets to orient yourself to the lots referenced.) What legal issues are presented by this fact situation? What advice might you offer the parties