直接担保申请移民是不可以了，因为不加分。可是边远指定地区的亲属担保临时签证还是有的。Sister in law, if this sponsor is the sister of your partner, can sponsor both of you and your parter for 475. 你的担保人必须居住在指定地区，包括墨尔本。
If you are sponsoring your relative for a Skilled – Regional
Sponsored (subclass 475 or 487) visa you must be related to
the main applicant or their partner in one of the following ways:
• a parent or step-parent;
• a child or a step-child, who is not a dependent child of the
sponsor;
• a brother or sister, or a step-brother or step-sister;
• an aunt or uncle, or a step-aunt or step-uncle;
• a nephew or niece, or a step-nephew or step-niece;
• a grandparent or first cousin.