Was she a New Yorker before she decided to run for the Senate?
No. She grew up in Illinois and met Bill in college in the northeast. After college they went back to Bill's home in Arkansas where Bill became governor and then president. After that 8-year debacle she bought a fancy house in NY, while claiming to be broke, and became senator from NY. In NY, you don't have to be a resident for very long in order to run.
Most excellent! If Bernie has a spy trolling FR, the spy would do well to write that down. Bernie could use it in an upcoming debate.