I know what I would say to a potential tenant if they started asking financial questions: “Next!!!!!”
Several years ago I had two law students asking financial questions about me and my property when we got together to sign the lease – then they saw the lease and suddenly changed their minds – I suspect that they saw they would be leasing from an LLC and not an individual so they moved on (harder to sue an LLC for a faked trip-and-fall accident)
OK, so I’m paranoid, I admit that freely – but suggesting that potential tenants ask financial questions of the landlord does not seem like good advice to me – it does however seem like a great way to ensure that you WON’T get to rent the place you are asking questions about