Gwen,
I'm not a legal person, but if the child spends 'more time at her mothers', maybe start by establishing this childs residence. Address she's registered at GP, dentist, schools, clinic, librarys, clubs etc. (That might strengthen your case if needed).
I'm just curious, if you've been to court already, why no outcome? Did they ask for further information?
How old is the child? (Sometimes, a court will recognise your share in the house, but not allow a sale until the child reaches 18). Your sol will know those issues.