Is the wife entitled to demand a separate dwelling and not to leave her family's home except to go to it, even though she knows of her husband's current inability to provide it financially?

If the husband stipulates that his wife live with his family and she agrees, then she has no right to demand a separate dwelling, especially if the husband is unable to afford it. However, if he does not stipulate this, or if there is harm in living with his family, then she has the right to a separate dwelling. It is preferable to consider the husband's situation and be patient.