can i quit claim property to under age children?

[Mike]

i have a property that i shared with my older sister and she wanted 50% of the property though she never help me on the expenses to keep it. i am thinking of quit claiming it to my 3 nieces and a nephew who are still under age. their ages are 7, 10, 13 and 17. i will still continue to pay for everything but i just don't know if it is legal for me to do this. besides my older sister want to sell the property and take half of the equity which is not fair and in don't want it because i want my nieces and nephew to make use of the equity in getting to college. what should be the best way for me to do to keep this property for i am very sure she won't quit claim especially now that she is financially unstable after spending all her money back home?