I've done 2 state moves during course of my business. THE best way and the only way I would take is to move the files YOURSELF. For my first move I went from NJ to PA and we too had a relocation / moving company but I boxed up, loaded and moved my own files, That really is the ONLY way to have peace of mind. I was told moving companies will sign agreements similar to BA Agreements that say they will not go through, so boxing them sealing them for them to move I suppose is possible.. but I was thinking that providing them with the knowledge of the files might be a curiosity thing.. I'm a pessimist that way.