What are the requirements for my wife to apply as a dependent on my DTV visa, and can she use a joint bank account with her mother for the application?

The user is inquiring about the application process for their wife to apply as a dependent on their DTV visa. They mention that while they believe she won't need to provide as many documents, they have concerns regarding their joint bank account with her mother. Commenters suggest providing necessary documents such as a marriage certificate, spouse's visa, and financial proof. They mention that having funds in a joint account may require more than double the amount, but there are conflicting opinions on whether she can use the same funds from her husband’s bank account.