So I removed the old broken 4x4 post that was for the fence and deck. I have the deck sitting on stone slab after I held it up with a jack. It had two bolts that I had to cut out that are still in the holes for the deck framing so I cant put the new 4x4 post back in the same way to attach it back to the deck. Any ideas on what to do?
Use a sledgehammer and a large punch to drive out the old bolts. For one-time use, a spike just smaller in diameter than the bolts, with the tip cut off flat may work well-enough at a lower cost, if you don't have a large punch on hand.