I'd be very surprised if she did not have access, like all other parishoners at every Catholic Church I've ever heard of, to annual reports of income and expenses.
It sounds to me like she wants the right to audit the Church and nitpick over ever invoice and expense. Maybe criticise the pastor for buying brand name laundry detergent for the linens instead of using store brands. Who knows?
If she suspects malfeasance of some sort, she should report it to the diocese or the police. If she's just nosy, she should get an ego check and realize it is not her role.
SD
Says she only wanted a line by line accounting, which is not unreasonable.