How to write last will testament before die?

Colorado I have an existing legal zoom will. I would like to change some beneficieries. How would I do this?

Arizona - can I create a last will on legal zoom on behalf of someone else.... My mother.... Who is unable to do so herself?

Missouri
my husband and I want to create a joint will -- we have joint checking and savings accounts at 3 financial institutes, are we required to add our two sons names to those accounts or will our will allow the sons be the beneficiaries without their names on the accounts? Thanking you in advance

Michigan - what legal document is required to appoint a relative other then a parent to assume financial guardenship over a grandchild?

Louisiana. I was married, three grown children, now remarried. What should be done to be sure that my three children receive all the property that was mine before I remarried? Ex. House, money, stock, household goods, etc...

Can I have my minor son as a co executor?

If a will was drawn up in new york but the recipient is a minor and resident of tennessee which laws are in effect?

My father has a will with an executor but we would like to change the executor and rewrite the will?

I have property in two states. Do I need two separate wills?