When do you start advertising a property for rent

[Kyle McVay]

We have a home we purchased in June. It looks like it 'should be' ready by the end of August. However, it could be the first or second week of September. Our contractor has had someone stop by that wants to rent it which made me think maybe it's time to start advertising. When should I start advertising the rental for rent.  What would I do for pictures? The previous pictures cannot be used as we are turning a 2-1 into a 3-2 and we've had (and done ourselves) so much work on the house that it's NOT the same.