What percentage of the neighborhood must approve and can I stop this?

Your deed or the town's land records will spell out the restrictions and probably the percentage (if any) needed to waive a restriction. Ask the...

Am I legally responsible for this vehicle even though I transferred liability and sold it?

Send the dealer by certified mail copies of the forms you have filed and any notice of receipt from the DMV. You won't be liable if the car is in...

If our contract is invalid, what leverage do we have, if any, to force him out?

Hopefully, that law student finishes law school. Your perfectly valid agreement should have a provision for this sort of the thing. If not, you can...

Should I contact a lawyer for consultation, or do i just need to let it go because i signed the waiver?

Under the facts you describe here, you will not successfully sue anyone. Your child fell down while playing.

Start with an attorney who will get the landlord to eradicate the mold immediately. This shouldn't take months.

Police misconduct

If you are asking what authority higher than the local PD will look into a complaint about police misconduct, you can try the closest US attorney...

Without my grandparents around to testify, am I legally entitled to any proceeds of the sale of the property?

You would have a problem even if they were around to testify. No one has an enforceable unwritten right to property.The way to conclusively...

Can I continue with the emancipation while keeping it a secret from my guardian

I am sorry you feel you have to do something so drastic. Unfortunately, there is no way to do what you want in secret.

Can I sue this man for undue emotional distress and/or defamation of character?

Nothing you describe here would be the basis for a successful lawsuit.

Can't her attorney, due to continued sobriety & attempt to better her life, request private hearing with judge? Suggestions?

You will not get a private meeting with the judge.