What is the ruling regarding some heirs refusing to sell their share of the deceased father's house, while others wish to sell it to the beneficiary residing in the house?

You may buy shares from partners who agree. As for those who do not agree, their share remains their property, because a partner is compelled to division, not sale, unless the property is indivisible, or its division would diminish its utility. In such a case, the partner who refuses to sell is compelled to do so to resolve the dispute.