Brokers Title Company, Inc., and the Title Guarantee Company v. St. Paul Fire & Marine Insurance Company, and the Title Guarantee Company

OPINION OF THE COURT

ALDISERT, Circuit Judge.

The question for decision in this diversity case interpreting Pennsylvania law is whether a professional title insurance broker may avoid the effect of an unambiguous contract clause on the basis of his uncommunicated, subjective misunderstanding of that clause when the other party to the contract had no notice of the misunderstanding and the parties are of relatively equal bargaining power. Because we believe that Pennsylvania would not allow such avoidance, we reverse the district court’s determination to the contrary.

I

Brokers Title Company is a…