If a restaurant doing alcohol business closes down, is it permissible to get commission on helping it sell its fixed assets that does not include any stock of alcohol?
If they close down with out any plans to restart alcohol business somewhere else, then helping them to sell stocks not linked with alcohol is allowed.
If they want to do the same unlawful business again, then it is not permissible to help them in any way.
In any case, helping in selling any material which can be used in alcohol is absolutely forbidden.
Wassalam.