It is best that you allow yourself to be served and then find a 'flat fee' attorney who can prepare a response for you and can explain your legal rights and options.
You have had a long marriage and as such there are certain laws that may apply to your situation. You may have rights to spousal support, as well as division of assets & debts. One asset could be his pension.
Answered on Sep 24th, 2013 at 4:29 PM