If the tenant's pets or lifestyle is the root cause of a pest problem, then it would be appropriate to charge them for the cost of remedying. 

@Pat Kumparatana   I think 95% of the guru type companies have their roots firmly planted in MLM.. and use a variation of it..

Those can give out (which is why you should have your laterals inspected before you buy) and are often subject to infiltration by tree roots.

You will be super happy you educated yourself more than most on this subject.The root of renovation is simple (but complex to most because none of us know what we don't know)....figure out all the material that is needed and how much (aka quality take-off). 

Hey everyone, I live in CO but have roots in the Texas panhandle area and am considering some property investments in the Amarillo, TX area.

. I’m rooting for you man!

Then he hired his own plumber, who still couldn't come until the next day.The new plumber brought a very long auger and camera and discovered that there's lots of gravel inside the drain pipe (under my front yard) and explained that this is common in my area when the pipes crack from tree roots, etc.

The drain cleaner guy pulled out a nested clump of tree roots.

Neither the roots nor the branches go over the property line. 

Lenders take kindly to a good employment record with W2 income, so that's been beneficial.My real estate investing is at the grass roots level, interfacing with tenants and participating as a community player to enhance the livability of our community.