Higher interest rates have some blue chip REITs sitting on the bargain shelf.Real estate investment trusts, or REITs, are a great way for investors to add real estate exposure to their portfolios without actually buying property. These companies specialize in real estate and pay big dividends, but can be easily bought and sold like any other stock.Many REIT stocks have struggled due to higher interest rates. These companies borrow to fund growth, and higher rates make that harder (more expensive). This has ...