(June 21, 2020, 8:28 AM EDT) -- WILMINGTON, Del. — A dispute between a nonprofit organization and a Hilton franchise in Hawaii erupted in a lawsuit June 5 in Delaware federal court, where the nonprofit seeks the return of $1,409,160 in deposits it says it is owed pursuant to the parties’ contract (Mechanical Contractors Association of America, Inc. v. Hilton Franchise Holding LLC, No. 20-759, D. Del.)....