Am I entitled to half of the money from the sale of the house if my husband sells it?

I wish I could give you a yes or no answer but unfortunately I don't have enough information to give you that type of answer. I can say the following, if you acquired the home during marriage and it is a community property asset, you will be entitled to a portion of the sale proceeds in a divorce. Your fact pattern indicates that your husband acquired the property was acquire as a gift or inheritance by your husband. More than likely it is your husband's separate property. If community property funds were spent on that asset before you separated you have a claim for reimbursement. As I said early I would need more information before I could properly answer your question.

Normally an inheritance, if kept separate from marital property, is not subject to marital property separation.

If it was left to your husband as an inheritance it is his separate property and you are not entitled to any of it (unless the community paid down the mortgage or for improvements).

Unless community funds have been used in the property, the property is his separate property to which you have no claim.

If he inherited the house it is separate property and not subject to division as community property. So. No. you are not entitled to half of it.

Any assets that are aquired by gift or inheritance are "separate" assets so, unfortunately, the answer is "no" in this scenario.

If the house in Puerto Rico was gifted solely to your husband by his mother, then it is, absent other circumstances, his sole and separate property.