Hi,
This might help you:
I. Add two user roles to the form:
a. One as Default role and other is ‘Boss’(Add Boss name to this role).
II. Create two views in form one as Read-only and the other is editable (Default).
a. Get the status into form from share point you have to take a SharePoint list data connection.
III. Set the ‘Rules’ given below. (Tools->Form Options-> Open and Save->Rules)
a. Rule1:
i. Condition:
1. User current role equal to ‘Default and
2. Status field equal to ‘In Progress’
3. Action: Switch to view’ Read-only’