I only own nicer rentals with fenced back yards and rent to families with dogs. 

If you are young and have not collected kids, dogs, and commitments, I'd suggest putting your head down, delaying gratification, working your a$$ off (get a second job, drive for uber, deliver pizzas, buy a pressure washer and knock on doors asking to pressure wash driveways, etc.), living off of next to nothing, and looking up in 12 months to re-evaluate.

Yes, you can terminate her lease for bad behavior. 

Where is your advantage to finding an asset over a dog collar there?

You can’t because the tenant would have to say…I only want to live in this 2 square miles, I need 3 bedrooms, I want a 2+ car garage, I need a yard for my big dog, I want laundry in the unit, it must be on the ground floor, nobody above, between 1200 and 2,000sf.

He found out the carpet smelled so badly with the dog pee and wood floor was also damaged by the dogs after they moved out. 

When the National rodeo comes to Vegas those people have money and their horses are closer to family members a most people’s dogs. 

She is also my neighbor so I have been bringing her organic produce from my vegetable garden (she loves that) and even helped dog sit her dogs for free.

We recently had a large group; larger than what was allowed, stay at our home and their behavior was unacceptable. 

But if there are two dogs in the downstairs unit for the two bedrooms, I assume that would be chaotic?