Ideal clients are those that are buying not because a piece of paper says they will get a good return, but because the actions of a company and the commitment they show to being great tells an investor that they will be able to sleep well at night.  

Once you have this done, capture your thoughts and put them on paper. 

You can greatly reduce your handyman call costs if you put together guides on how to tighten bolts to remedy a loose toilet seat, how a tension shower rod works in case it falls down, etc.   

Also toilet supply lines depending the age. 

All new windows (some larger, some removed), new floors and paint, removing a few walls that aren't structural, two net baths, making a basement into a room, closing off another room by extending the floor a little and adding a very small piece of wall, adding a swamp cooler, new water heater, vapor barrier, replacing kitchen cabinets, adding tub in one of the bathrooms, moving toilet bowls a little, adding a larger deck, etc etc

There is a type of wallpaper, called "liner paper", that's made for covering wood paneling. 

Of course, there’s no paper work confirming or denying any of this.

In either case, you can't work on the property as it must be a passive investment (e.g. you must hire someone to fix the toilet and can't pay the expense with non-retirement funds).7.

If necessary, revert to paper that you can lock up.

No tenants termites or toilets !