Later, I found I had to remove the laminate in entire apartments because the dog urine goes through the laminate and stinks.Maybe, I will try a thick rubber-type later.

She was nothing but drama, often had problems (also from like 4 other people living in the 1bd, 1bth apt), had 2 bricks thrown at windows and broke them, but I think the best was when they showed us a youtube video is someone urinating on our/her front porch.   

The bigger hurtle is just getting people open to the idea.

The biggest hurtle I'm facing (and with my clients) is the financing aspect of it. 

This creates a moppable urine resistant flooring system.

I always say the animal must be potty trained or walked outside in a very specific area and waste material immediately  cleaned up, if the grass is discolored due to urine, they are to reseed within 24 hours of the discoloration.

A license will not only smooth out the hurtles a lot of wholesalers face, it essentially gets you two bites at every apple, "I can buy for this or List for that".

You do not want the call from new tenants that smell cat urine.

One has a urinal and Harley Davidson thing front and center. 

My property has (a) water lien(s) on it that's currently being disputed and was hoping to do a HELOC on the property, but worry the lien(s) will be a hurtle.