Omega Healthcare Investors, Inc. (NYSE:OHI) is a very popular real estate investment trust ("REIT") because it is one of the highest-yielding investment-grade-rated companies. Moreover, OHI has also grown its dividend for 20 years in a row, which would suggest that its dividend is safe: Over the past year, OHI has massively outperformed the rest of the REIT sector (VNQ), and that's despite facing more challenges than your average REIT. OHI should have underperformed, not outperformed. But since it didn't, it has now become overpriced relative to most other REITs.