In a Divorce case, what its mean that Default hearing got canceled by court?

Ask the clerk. And get a local lawyer to get it done properly.

Effectively, none. Seek an accounting.

My attorney made a mistake about my last name while filling for my divorce, what can I do to fix the problem?

You can file (or have your attorney file) a motion to amend the judgment.

Can after one year of divorce ?i can reopen the case to get alimony??even though I cheated on my husband and they have proof?

It's highly unlikely. These issues are handled at the time of the divorce. Unless there was some flaw in the process or in your settlement...

My grandparents have been separated for over 20 yr. Heaven forbid something happens to her will he be entitled to her money?

He will be her husband for the purposes of inheritance laws unless they are divorced or unless their separation agreement contained a waiver of...

I signed divorce papers with no witness fell had brain injury lawyer was aware found out my x had hired him

Get your own lawyer now and see what options you have for enforcement.

Divorce lawyer

You have to file in a state in which one of you has residency.

Are there any consequences for an attorney not properly signing on as an attorney and then represents my ex in a hearing

No. Your chance to object was then, not now.

§ 1-186. Exceptions to decision of court. ??? What does this mean?

Is that a decision on a matter of law? You need an attorney.

I think my attorney is working with my ex-husbands attorney and trying to get my ex to demand more than he actually wanted.

If you're not satisfied with your attorney's work you have the unfettered right to seek other counsel.