You can find vacant homes by driving around town, hiring a bird dog, getting a Investor friendly real estate agent, talk to the mail man, tax collectors office, zoning office, you can even try call utility companies.

They fail to make their last two payments, steal your washer and dryer, their dogs have destroyed your carpet and dug up the lawn, there are several broken windows and holes in the wall, and the place is filthy.

Useless in a dog attack situation.

They also love dogs, so we were able to get a puppy like we had been hoping to get for about a year.)

This was all decided before the dog and pony show that wasted a bunch of cities time. 

and they have an education model were they look for bird dogs to become commerical brokers working with them its nice they disclose the costs.. up to 30k it looks like.. some of the loan products in some of the states require NMLS  not sure if they are licensed did not see that on their site. 

We upgraded the exteriors with landscaping, dog park, playground, and shutters.

We simply thought they were some weird bug our dog picked up, who often lays on our bed.

Should I avoid  aggressive dog breeds? 

I've seen it on both sides where the landlord is just nit picking and is going way past reasonable deductions, and tenants that are so far out there that don't realize they are going to be charged when they leave dog poop on the carpet for the landlord to clean up.