In 2017 in Bristol Meyers Squibb Co. v. Superior Court of California, the United States Supreme Court narrowed the concept of personal jurisdiction. Bristol Meyers requires that the state where the plaintiff brings suit must have some affiliation with an act or occurrence that forms the controversy. Basically, whatever bad happened, some of it must have occurred in the state where the plaintiff has sued.
choice of law
All lawyers should include basic provisions in contracts for their clients. One basic provision designates or chooses the state's law that applies. If your client has the bargaining power, and is located in Connecticut, well, you choose Connecticut. But the language you use in your "choice of law" provision is critical. Simply stating that, for example, "Connecticut law governs the interpretation and enforcement of this agreement" will not guarantee that Connecticut law applies to extra-contractual torts.