My spouse ( common law) are planning to come on the new DTV visa but I have some questions hopefully someone can help with.

1)How far in advance do I need to apply,

2) is there a certain amount of time the 500,000 needs to be in my account when showing our bank statements

3) I am self employed and have a business I can run from anywhere so how would I need to show proof of this and that I don’t work for someone else?

4)

And would I need to reapply for this visa every 180 days or how does that work?

Thank you for your help in advance ☺️