Thank you for your question
My name is Clare
I shall do my best to help you but I need some further information first
When did you inherit the property and how long had your brother lived there?
Did your mother live there?
So he lives there alone all that time - but you have inherited the house - is that correct
Was there any written tenancy agreement between your mother and your brother?
Then I am afraid that there is no action that you can take - you inherited the property as it was and with him living there.
He was under no requirement to clear the property - or leave it in good condition.
I am sorry that the news is not better - please ask if you need further details