In what cases may I threaten to publish disparaging information about a corporation if certain demands are not met?
For example
1) Suppose my HVAC contractor overbills me and demands payment. I tell them I don't owe them, so they sue me. I do some research and realize that they have sued 137 people in the last two years for the same reason. Can I threaten to collect and send this information to the local newspaper if they don't drop the lawsuit? Can I ask them to pay my legal bills?
2) I've been working for a company for 15 years and haven't got a raise. I now know a lot about the company. I also have a blog that is well read in the community. Can I threaten to "quit loudly and publicly" if I don't get a raise?