Of course there are ways to get a husband and co-owner out of the home. These are orders of the court. A restraining order or protective order ordering his departure, a court order as part of a separation or divorce decree, and possibly one or two others. But, an "eviction" would not be one of those options.
But, if mom is not willing to report anything to the police, it is doubtful that she is going to take the extra step of hiring an attorney or seeking assistance in filing for separation or divorce, or even petitioning for a TRO.