A group of friends play the slot machines at a casino. nd3000/iStock via Getty Images Achieving and maintaining success as a dividend growth investor depends on owning businesses with a reasonably high probability of being around in 10 years or even 20 years. As a dividend growth investor, this is why I tend to search for business models that can stand the test of time. The real estate investment trust or REIT sector is one of my favorite sectors for that very reason. I believe the need for high-quality com ...