Does anyone have advice or experience on how to approach real estate companies for permissions? The area near me is developing quicker than the neighbors would like and there are a few old properties I'd like to visit before they get sealed over. Since I'll probably be passed down a chain I was considering email. I just looked at an old map with a modern map underneath and found some very interesting differences between the two and I'm stopping in the history society tomorrow to pick some brains and maybe leave my number in case a need arises.