Your step-father and mother owned a house your mother died with no will and your step-father got remarried When your step-father dies do you have a claim to any portion of the property?

There are several factors that must be considered and you haven't included the important details. The basic questions would be when the land was acquired, how they held title to the property and whether they live in a community propertystate. It is likely they held title so that when one died the other would become the sole owner.

To answer this question you would need to contact an attorney who could check the title to the property in the land records.