There are (at least) two issues here. Guardianship in Missouri is not generally temporary. It is a semi-permanent legal action, granted by a...

My sister and I owned our parents property my parents and my sister have died. My sisters husband is claiming half.

Generally, one owner's portion of a deed cannot be changed after that owner's death. An estate planning, probate, or real estate attorney should...

Missouri law requires that a change to a will, such as the one you mentioned, needs to be notarized and witnessed just like the original will does....

This sounds very difficult for you. My reply is based on general probate laws, and might not apply to your situation. A Family Access Motion...

Can I get help from the state for the 3 kids that I've been legal guardian of for nearly 10 years?

The Missouri Division of Family Services might be able to help you in more than one way. They could possibly help you get child support from the...