state of residence for lawsuit

I had a corporate credit card and a corporate credit line in my name from Capital One that the company I owned stopped paying in 2009 when the business closed. I hadn't heard a peep from Capital One for several years even at the old address until I was forwarded a regular letter sent via USPS from a judge. The letter wasn't sent registered or in any special way. How does the judge even know I received this letter?

The letter informed me I'm being sued by Capital One. The statute of limitations in the state where the company was located is 6 years. I now live and work in a different state with a limitation of 3 years. The statute of limitations would be expired in my current state of residency. Can Capital One sue me in my old state?

I would like to know which corporate debt is referenced in the lawsuit. Do I give up any rights by contacting the clerk and asking for details? How much information if any should I give the clerk?

Does anyone have settlement experience on a corporate account being settled personally by Capital One? What percentage and length of payments should I target?

I'm leaning towards hiring a lawyer to represent me. When I do, do I hire a lawyer for the area where I'm being sued or from the area where I currently live and work?