My aunt is a partner in the family business and has taken full control of financial matters since my father died. As a result we have not received anything from the business for the past two years, although it is still operating and making good profits.
Your entitlement will depend on the terms of your fathers will and the partnership agreement he drew up with your aunt. If the aunt is a partner, as opposed to a director, it suggests the family business wasn’t a limited company. In that case when your father died the business should have been valued and either restructured or dissolved according to what was agreed originally. Take the will and any documents you have concerning the business to a solicitor.