Guardianship

Where can I find forms to give my sister guardianship of my teen daughter?
My 15 year daughter just moved to North Carolina with my sister. I was wondering what form I need to use stating my sister has guardianship over her. I need a form for school entrance purposes.
Does guardianship have to be appointed by the courts to be legal?
I downloaded a form to give temporary guardianship of my child to my parents. Must guardianship be appointed by the courts to be legal? Is the form I downloaded a legally binding document?
How can a person be guardian of someone in another state?
I have been a caretaker of a mentally handicapped woman who has lived in Florida for over 30 yrs. Her legal guardian, who has always lived in Florida, is recognized by the state of Indiana as being her guardian(of her person only as of 2001) and is still recognized today. How can Indiana have jurisdiction over someone who has lived in Florida for over thirty years? Is this a valid guardianship? No paperwork has been filed or transferred to Florida. Her trust fund is in Indianna and she has a separate guardian (a bank) there. What should I do to challenge this since now the legal guardian has the mentally handicapped person living with her and will not return her to my home.
Do we need to file any additional paperwork for guardianship if we moved to another state?
My wife and I have legal guardianship of our niece when we were living in New Mexico. We have since moved to Idaho and have been told that we do not need to file any additional paperwork to transfer the guardianship to our new home state. Is this accurate?
How do I obtain legal guardianship over my nephew?
My sister is a teenage mother who is not able to provide for her newborn. My husband and I are financially secure, have two children, both work and have full medical coverage. With my sister's consent, my husband and I are interested in obtaining legal guardianship of our nephew. How can we do this in Washington state?