Broken bolt

Welcome! sorry you have to start with a broken bolt story...IF any of the bolt is above a flat area where you can grab it with Vice-Grips, heat it up with a propane torch and melt a crayon around the bolt. It may lubricate it enough to back out. Do you have a welder or know someone who does? weld a bolt to the broken one and back it out...may help to use the torch/crayon combo again. Good luck!