Can the executor of the estate evict me from my father's home if I was living there prior to his death.

My partner lives in his dad's house along with his brother, prior to his dad's passing. The will does not include the current home as his will was never updated. The older brother who is executor is attempting to evict because he doesn't get along with any of the family members. They want to stay in the home which is paid free and clear and no debts. It's in probate now and the will states that any assets acquired after the will completion is to be divided and distributed to the heirs. There are 8 heirs total. His original property on the will was sold and proceeds were given to the daughter who was listed as the only heir for that original property.