Investors & landlords

I got in touch with someone at TurboTax yesterday while waiting on an answer. They tax expert said that if it was accounted for on my W2, then I don't have to enter anything else. Now I'm even more confused, and about to call a CPA to do my taxes instead. Is there a place that provides a step-by-step instruction list for how to handle this? Frustration levels are growing. In my particular case there is no 1099-B - it's all reported on my W2. It seems duplicative to enter the stock sale again.