An employer should pay severance payment to his helper if the helper has been employed continuously for not less than 24 months and is dismissed (or his/her contract is not renewed) by reason of redundancy. ...
However, an employer is not required to pay both long service payment and severance payment to the helper.
Labour Department -
Policy SupportWe had to pay our helper severance pay upon her completing her two year contract with us. This was in accordance with the labour laws of Hong Kong.
In your case, am presuming you would have to pay her as employed continuously for the past 14 years. if not severance pay then long term service as per labour law.
You may want to call & speak to a customer service officer at the labour department to verify the requirements.
Here is the
linkHope the above helps.