How Do We Get Rid of Above Cabinet Soffits?

Hello Jake-

We have 3 walls of soffits over our 1989 contractor grade cabinets. Inside there are waste pipes from the 2 baths upstairs as well as 3/4inch copper pipe and electrical. Our ceilings are 90 inches high from the pre-finished hardwood floor, the soffits are 7.5 inches high and they protrude 4 inches beyond the 12 inch deep wall cabinets.