The caulking is drying more and more gold and I am sure he did not use the same Almond he used when he was here last and just wanted me to return the battery charger he left here so he did as little as he could to cover the cement area between the carpet and tiles in the front foyer despite giving him a metal transition piece I bought that he did not want to use. I wanted the caulking to match the mushroom grout. The goldish colored caulking is still soft and not dry so I wonder how long it will dry with my floors so cold despite keeping the room at 71 degrees? I have to block that area so will take pictures when it is dry. The middle foyer's metal piece was glued on and a piece of wood was not placed on the 2" cement area in between the tile and carpet so he could nail down the transitional metal piece I bought for him. I hope it does not look too bad when it dries. I hope I can live with this until I have time and money after my busy season to replace this carpet. To me not finishing a job is liking making a beautiful dress and not cleaning lint and dirt off of it and not hemming it so the edges are frayed.

Yes, break the seal first. You can use a utility knife and keep cutting around the edge of the sink. Since you intend to trash the old counter top, I'd take a recip saw and cut out the sink along with a small portion of the countertop. Once you have it sitting on the floor you'll find it easier to pry off the small pieces of countertop stuck to it.

Red flag disaster. Hire a pro. Large format tiles ade not for amateurs. Or even most pros.

Bioclean Hard Water Stain Remover. It kinda looks like toothpaste and frankly smells a bit like toothpaste. Works great on tile and glass.