Montgomery County, Pa., located just northwest of Philadelphia, is Pennsylvania’s second-wealthiest county thanks to the presence of such communities as Gladwyne, Bryn Mawr, Rydal, Abington, Huntingdon Valley, Lower Gwynedd and others. The county is 487 square miles and has a population of approximately 800,000 people. It is an incredibly diverse place as far as housing stock and community feel,...