Investing in high-yield dividend stocks is one of the best ways to accumulate wealth to fund your retirement. For the better part of a century, dividend-paying companies have far outperformed non-payers with less risk.However, not all dividend stocks are created equal. Investors ignore the warning signs they sometimes give off at their peril. Even if a company has a long track record of paying a dividend and raising the payout every year, it doesn’t mean it will continue to do so. Walgreens Boots Alliance ( ...