Ooh found something. Charlotte's father was Dunbar James Hunter who died in Ceylon in 1806. His will is on Ancestry and he leaves everything to his daughter Charlotte, and £50 to Charlotte's mother Seraphina Doncler, and names his mother and brother as her guardians
He names William Andrews a Executor. There is then a further paragraph detailing (I think) the reasons for the dispute to Chancery.
https://www.ancestry.co.uk/interacti...&usePUBJs=true