Three things get missed on homes in Oakland, Livingston, Washtenaw and Wayne. Replacement cost — an older Birmingham or Ann Arbor home with plaster, millwork and slate costs far more to rebuild than it would sell for, and a rounded-down dwelling limit shows up as a coinsurance penalty at claim time. Water — the finished lower level is where the loss happens, and sewer backup and sump failure are endorsements, not automatic coverage. And Michigan’s no-fault PIP choice, where picking the wrong level to save a few hundred dollars a year can leave a catastrophic injury uncovered for life. We review all three, in writing, before you sign anything.