Restrict edit on absences based on date/year of leave and by the user role who created the absence

Summary:

Restrict edit on absences based on date/year of leave and by the user role who created the absence

Content (required):

We have the below requirement on restricting edit/withdrawal of absences based on below conditions and would like to know if there is a solution/work around possible for these

1. By the 15th or 31stof January of every year, all absences for previous year should be made un-editable to employee/line manager. Only HR admin can make edits to the previous year absences. Note: We cannot use the lock if completed option as this does not fulfil client requirement.