Cat urine challenge

[Jagan Reddy]

Hello multi family investor gurus

Cat urine damages property very very bad. 
I have had multiple incidents ruining my units. It demanded to replace full flooring, scrape walls and repaint costing entire year worth of rent from that unit.

Question: are there technical solutions inexpensive to remove cat urine instead of replacing all wood , carpet and walls?

Or are there floors that won’t sink cat urine? 

This is a big challenge to every one of us.

Not allowing tenants with cats is possible but tenants may cheat not declaring cats. 

I love pets but costs are prohibitive. 

thanks

Jagan