These REIT stocks offer more than just juicy dividend yields. Own real estate without the headaches of owning real estate. That's the big advantage of investing in real estate investment trusts (REITs). And REIT stocks come in lots of different flavors. Realty Income (O -0.32%) and National Storage Affiliates Trust (NSA 2.23%) are great examples. The former owns several types of commercial properties, while the latter focuses exclusively on self-storage facilities. Here's why I just bought these two high-yi ...