Hello again Evelyn,
Thanks for writing back..great to hear from you!
I'll address your additional questions in the order presented:
(1) "He started this divorce in Birmingham, AL and I live in Roswell, NM, I this matter to be handled in the state of Alabama?"
The divorce will be adjudicated in the jurisdiction in which it is filed. In other words, if he filed the case in Alabama, it would be heard there. In order to survive dismissal on residency grounds, this means your husband must have been a resident of the state for six months or longer before he filed his suit.
(2) "Would it be possible for you to refer an attorney that will be able to help me?"
To help folks in this online venue, I am required to follow site rules including refraining from accepting cases and/or making direct referrals to named attorneys. However, I can tell you where I would turn were I in your very shoes. Here's a resource you can trust without hesitation, and it's also the best bargain you'll find. Since you live in another state, it offers an opportunity to schedule a telephone consultation:
Alabama State Bar Lawyer Referral Service
(3) "I would also like to know how much time will I have to send a response? The letter is dated 5 March 13, and received it on 11 March 13."
There is no legal duty to respond to a letter. But, upon being served with an actual Summons and Complaint, your Answer will be due by 30 days thereafter. Special "counting rules" apply procedurally, but your lawyer will know how to properly count to make sure everything is timely.