Re: Cracking drywall after floor beam installation
You should have butted the interior walls before you did the structural work and jacking; it would have made the jacking more effective and instantaneous. Now you have to wait until the stresses all work themselves out of the drywall. When will it stop moving? after all the stress is dissipated. You could set up monitoring stations at critical pints using little adhesive grid transparencies sold just for this purpose.
Remove not the ancient landmark, which your fathers have set.