It used to be that, to live in Chatham, you practically had to know someone. As a mother with no husband — despite having a 9-to-5 — my chances of finding a landlord who’d rent me an apartment in one of Chatham’s immaculate three-flats were slim. The landlords there could afford to be picky. Few of them would rent to you just because you told them you were a mom desperate to move to a neighborhood where you didn’t have to worry about gangs and guns. That’s another thing that’s different about Chatham these days. Looking for the new Chatham,...