Headquartered just outside our nation's capital, this REIT has increased its dividend during each of the past 58 years.When you think about REITs (real estate investment trusts) and dividend growth, a certain REIT known for making dividend payments monthly, Realty Income (O +0.74%), may be what first comes to mind. Yet while Realty Income has indeed built up a strong dividend growth track record, but it's still decades away from becoming one of the Dividend Kings.However, among REIT stocks, there is already ...