What are the steps I need to take after I got my child's mother served and she's trying to denied my custody papers ?

If she does not file an Answer within in the time frame she needs to file one then you can file a request for default against her.

How could I get full custody of my daughter whose mother I believe is unfit?

If the current order has you two having joint custody and mother will not agree to modify the current arrangement, then you would have to file to...

Can I receive money from the business that I help her with the time we was Marriage

If there is a value to the business, you would have an interest in.

How hard is it to write an appeal letter for a divorce ruling ?

You should speak to an attorney offline ASAP. You only have 30 days from the court order being entered to appeal.

How is it decided with shared custody who can enroll the child into school?

If the two of you cannot agree on where to enroll her then you will need to go back to court.

Does a statute of limitations apply to an Active/Current Court Order/Parenting Agreement?

As it relates to child expenses, yes there statute of limitations. If it was from a Court Order then it would be 12 years.

If you knew in 2008 you had child support obligation and are just now trying to say that there was an issue with it, you likely have no ability to...

Can I appeal a child support order?

You can appeal. Within 30 days from the order being entered. However, you will need to prove to the Court of Special Appeals that the Judge got...

Yes, you have to call their office and just ask.

If you properly served her and she filed an Answer to the Complaint or you filed for Default because she did not file an answer to the complaint...