This is a textbook case of why you need a lawyer when you go to court. Without reviewing the documents and knowing when this happened it's...

I need to know how to go about getting my kids back?

I don't know who "they" is who said you don't need a lawyer, but under circumstances in which you gave up your children for any reason you'll need...

Can my mother, 68, serve my father, 69 and demented, with a change of venue for divorce though they've been divorced since 1976?

If they were divorced in 1976 a change of venue is not needed.

How can I get registration renewed for my car that it is under my soon-to-be ex-husband's name?

Contact the DMV.

Does it affect my husband?

Do you mean renewal? If so this is an immigration question.

Help needed plz!!!

Use the find a lawyer tab above.

If I buy a house after a divorce is filed but not yet settled, is it considered a marital asset?

No - but the money you used to buy it may be a marital asset.

Divorce/limited funds

Many attorneys take payment plans and uncontested divorces are quite reasonable. Use the find a lawyer tab above.

Once a spouse moves out, are we free to date even though still married?

You are free to date. But if custody is at issue this can come up and be a problem.

It is not required. But you should show it to a local attorney to make sure it's properly written and executed.