Chosen Solution

Iphone 7 screen replaced twice. Came in off unable to test. I tried replacing it with 2 different screens, still no boot. Slapped a new battery in there with a new screen, still not turning on. Frame is a little bent, the screen came in completely shattered and off. I believe there is logic board damage. But does any one have any suggestions I can try to get this thing on?

I would remove the logic board and inspect it closely; you may see some signs of damage. Ideally, if you can confirm the screen and battery are known-good, then really the only other option is the logic board.