Answer:
Burns’s revocation is not effective
Step-by-step explanation:
Revocation can be defined as the
the cancellation of either a decree, decision, or even a promise and the making void of some deed which was previously existing.
Therefore according to the information given Burns’s revocation is not effective because Burns’s promise to pay for a particular performance which isa unilateral contract which was said to be rendered irrevocable once Realtor performed by finding a buyer for the building.