Forbes:  “An inherited retirement account is more than a simple pot of cash. Often, an heir can stretch out withdrawals from an individual retirement account over his or her life expectancy, gaining decades of tax-deferred or (in the case of a Roth IRA) tax-free investment growth. But the IRS rules for doing this can be tricky. If you’re inheriting an IRA or 401(k), here’s what you need to know.”