Guardian for minor nominee for property

I wants to understand here,who can be considered as a guardian to the minor nominee ? My case is like I have co owned residential flat with my husband and we would like to give the name for nominee, so we have given our daughters name as a minor nominee with 100% share, but in this case we also require to give name of guardian to my daughter, my husband wish to give his father name as a guardian, but my worry is they are aged(78yrs) and do not stay with us, hence not able to take care of her. So I have some other family members who can become / consider as a guardian, like my sister or mother, so before appointing any of these as a guardian, please suggest me the proper law for the same, and what rights and responsibilities guardian will holds and also can I keep more than one guardian to the minor? And can I become her natural guardian?