If tenant violates this paragraph or any agreement to keep a pet on the property, landlord may take all or any of the following action".....etc....Having a puppy or even an older dog is a huge risk to the home.

Now at 28 years old I am finally ready to put it in action, which I should have done a long time ago. 

Talking with a lender should at the very least provide you with a better idea of how much more you will need to save, and hopefully some other actions to start taking to get better prepared for financing. 

Hey Nef, As others have mentioned, certainly when you are ready to start taking action is the best time.

TIA I would tell them "Thank you for your service and standing as an example in action.

I just want to know what the plans of action they should take.Thanks!

What actionable steps should prepare a newbie to pull the trigger when property prices drops again?

Great job @Jessie Harrison on taking that first step and actually taking action!  

As a seasoned property investor, what would be your course of action?

You must document,documents all damages and by all means let the son know since he is responsible mothers actions.