Make a reasonable effort to identify and contact the photographer or his/her heirs. Use the Society of American Archivists Best Practices (link below) for a variety of approaches.
Deceased. On wikipedia but Miki has only one 'k'.
The ASCAP database lists the copyright holder as follows: SONGS MUSIC INC C/O CAROL HERNANDEZ CPA 755 NEW YORK AVE SUITE 215 HUNTINGTON, NY, 11743 Tel. (631) 673-7173
I would recommend WikiPedia and look for "Deceased Singers" or "Dead Singers" So i believe wikipedia is a good place to search!
Speak to the funeral director and they will be able to advise you. You can bring some items to place inside the coffin with the deceased person (again speak with the funeral director), such as a photograph, teddy bear, a flower, are some items that can be considered to be put in with a deceased loved one.
it is ilegal unless you have permission
You contact the estate.
According to Wikipedia, her biological father, Sal, is deceased.
If you mention a real person in your book, it's generally advisable to get permission if the mention is critical to the story or could potentially harm their reputation. If the person is a public figure or deceased, you may not necessarily need permission, but it's good practice to consult a legal professional to ensure you are not infringing on any rights.
It varies from a country to country but generally, you may only acquire records concerning yourself, deceased individuals and/or, living individuals must give their permission to obtain their records.
No, unless you have a power of attorney from your brother. And if your brother is deceased, you would have to be the executor of the estate and have the court's permission.
NO.
It is possible for it to happen. They would have to have a court order to do so.