I have accepted an offer of employment from Company A. After accepting, when I went to give my 2 weeks notice, my current company (Company B) beat the offer in order to hold on to me. Given that I've already accepted Company A's offer, and will now have to go back and cancel/decline a signed offer, does Company A have grounds to sue or pursue any legal action with me?

Company A may have grounds for what is known as a wrongful resignation, however it depends on the terms of the contract that you signed. From a practical perspective, it is unlikely Company A would actually pursue you for damages but if you are concerned about the likelihood of this you can contact our firm at the number below to have your employment contract reviewed by a lawyer.