Can the dad's father get custody if moms boyfriend had domestic cases on him

If the other side retains competent attorney they will make this a huge issue and it will be very hard to overcome!

Driving a car with no ins. while on probation. Hit a snow bank but has a licence and car is my wifes. Can I go back to jail?

Yes they can as it is a misdemeanor and you are responsible to make sure a car has insurance when you drive it.

I have a Bench Warrant for failing to appear for my child support case. They sent it to the wrong address and have a civil case.

Please see my answer to your other post.

Not fingerprinted but now they want to

Yes they can require you to be fingerprinted. You plead guilty!

How successful is it when you decide to withdraw a plea?

It is harder but if you truly are innocent and it was a no contest plea the Judge should do it in the interest of justice.

I have a previous issued bench warrant for failing to appear at a FOC date. They sent it to wrong address.

It is not common for a judge to run checks on civil parties so I doubt it. Now it is a small community and the Judge knows you then he might know...

So i am being charged with delivery of a controlled substance. i believe it was my boss who set me up.. i never sold him anythin

These facts tend to support the charge. You may have a defense though and I would contact a good criminal law attorney ASAP.

Do I need to file an actual motion for a 7411 deferral? Is this normally just done in open court?

You need to find out how they handle them in that jurisdiction as each jurisdiction is handled differently.

Initial felony DWLS causing injury. Plead to improper lane change causing injury/DWLS/ misdemeanors. Showing I plead to felony

This could simply be an error on the courts part and can be fixed with an amendment of Judgment.

I am sorry but if you are asking these questions you really need an experienced attorney to make sure things are done right.