review Chapter17. Third Persons and Contracts then answer this question

Robin Hood was an excellent archer and was the owner of Straight Shot Archery, Incorporated.The Merryman Annual Archery Tournament was taking place in three months.Little John wanted to compete in the tournament, however, he wanted to improve his skills with the bow and arrow and decided he was going to take a few lessons at Straight Shot Archery.Robin agreed to provide Little John 15 lessons for $2,500 beginning on June 1.On May 25, Little John realized that he would not have enough money, so he transferred his right under the agreement to Sheriff Nottingham, who had never used a bow or arrow before. Sheriff Nottingham notifies Robin that the contract had been assigned to him and demands that Robin Hood provide him with the lessons for $2,500.

Is Robin Hood required to perform on the contract?Assume that Robin Hood agreed to the assignment of providing lessons to Sheriff Nottingham and then fails to perform on the contract.Sheriff Nottingham sued Robin Hood for damages.Is Robin Hood liable on the contract?