Is it permissible for a woman to travel for marriage and leave her elderly parents after the death of her brother?

If the suitor is a man of religion and good character, and both parents agree, then there is no impediment to marriage and traveling with him, provided that the country to which they will travel does not prohibit the performance of Islamic rituals, and the questioner feels secure from falling into forbidden acts. As for the questioner traveling and leaving her parents, if they do not need service, then there is no harm. However, if they are in need, it is possible to reach an understanding with the siblings to take turns serving them, or to hire someone to do so, because serving parents falls under the obligatory financial support for them in case of their hardship.