I have been separated since 1989. After I initiate a petition for dissolution of the mariage, Can I divorce within 4 months?

You can file. Whether it will be finished in four months can't be predicted.

If I do receive part of my ex-husbands pension as court ordered, can I receive the money before he retires?

No- you can't collect on a pension until the pension goes into pay status.

What are separate property credits?

That depends upon the circumstances. Appreciation of a marital house would remain separate property unless the non-inheriting spouse somehow...

You advise the attorney in writing and submit both to that attorney for signature and to the court for filing a Consent to Change Attorneys,...

When mailing a notice of appearance in a divorce case, which address should be on the envelope? The sender of the 3rd party?

The teturn address on the envelope doesn't matter. The address in the Notice does.

Pendente lite

Yes, you can make the request. Under the circumstances you describe it would be more likely than not that you would be awarded attorney fees.

Of course.

Oh, for goodness sakes - if you have this many issues, get a consultation and discuss them in detail! You clearly don't yet understand either a...

Filling the notice of appearance in a divorce case.

Certified mail was the wrong way to do it. The Notice must be either delivered personally or mailed regular mail by someone who is not a party, and...

My ex wont respond after being served, whats next?

If she is the monied spouse and your pleadings seek legal fees, yes, you can. But - these are things you should be discussing with your attorney....