Subclass 300 prospective marriage (fiancee) visa FAQ

1. I have been chatting online with a lady for a long time, but I am too busy to travel outside of Australia, and she cannot come to visit me in Australia. Can we file for a subclass 300 visa?
2. My fiancee wants to bring her child to Australia. Is this going to be possible?
3. What will happen if my fiancee and I do not register our marriage within nine months of the date her subclass 300 prospective marriage visa is issued? Will she be able to stay in Australia with me?
4. If we get married outside of Australia after my fiancee obtains her subclass 300 prospective marriage visa, will she be able to use her visa for entry to Australia?
5. If we get married while my fiancee’s application for a subclass 300 prospective marriage visa is being processed by the Australian Embassy, will she still be able to obtain the fiancee visa?
6. A few years ago my fiancee was denied a visitor visa to Australia. Will that affect our application for her subclass 300 prospective marriage visa?
7. My fiancee has overstayed her visa before. Is she eligible for a subclass 300 prospective marriage visa?
8. My fiancee has a valid Australian visitor visa in her passport. Can she travel to Australia while her application for a subclass 300 prospective marriage visa is pending?
9. Can my fiancee obtain a tourist visa to visit me in Australia while her application for a subclass 300 prospective marriage visa is pending?  
10. Will my wife have to leave Australia after we get married?
11. Will my fiancee be able to work once she comes to Australia on a subclass 300 prospective marriage visa?
12. How long does it typically take to obtain a subclass 300 prospective marriage visa?