W.P. Carey (WPC 0.46%) currently sits more than 15% below its 52-week high. The weakness in its share price is a big reason the real estate investment trust (REIT) offers a dividend yield above 6%. That's multiples higher than the S&P 500's dividend yield, which currently sits near a 20-year low at 1.2%. The diversified REIT's high-yielding dividend should steadily rise in the future. That makes it an excellent stock to buy and hold for dividend income in the decades ahead.Rebuilding the foundationW.P. Care ...