bathroom drain vent double vanity

Hello, I am new here. I hired a plumber but have serious concerns about how he is handling the double vanity DWV. The drain has to be offset in the floor for structural reasons, and distance to the main stack. This means the kick plate on the back of the cabinet will be cut. That is totally...

Tried to mark this up best I could with what I'm thinking. I am putting a new vanity in that doesn't span the entire width of the wall, like the previous one did. I will have the new one flush to the right side. This means the water lines and drain lines need to move. The existing drain...

I'm remodeling the master bathroom in my house. Good plumber's are hard to find. I used to help my dad remodel rentals and did work with habitat for humanity. I decided to give it a shot. Attached is an image of my current approach, nothing has been glued yet. I would appreciate any feedback...