This person will most likely always pay on time and their is a higher likelihood they are clean which will mean in the end of their lease you can lease it to the next person while theyvare there and the deposit will cover the small charges. 

I don't know of an inspector but I do have a great electrician, handyman and clean-out crew if any of those would be helpful! 

When I look for my next property, I work on cleaning up credit, so my scores are as good as I can get them.  

Will you lose money on the clean? 

Attention to detail is a big one for me, make sure when they wrap up jobs they do the right work and finish the job clean without having a ton of stuff missing 

I would have to agree with @Simon W.If I took over, or had a client ask me to clean their books, first thing I do is make the Balance Sheet crisp and clean.

Could do I a lot less to get lower rents (for example an upgrade may be $10-$15k where a bare minimum repairs and cleaning may only be $1-2k).

My four adult children are out of the house; so, below are goals for our 11 year old and me.Read 15 minutes per day and log it.Set limit on daily electronic use.Clean up after himself (toys, push chair in, dishes, clean bedroom, clean car).He plays sports and has a few tough baseball goals that he works with me on (inside/out swing, pitching mechanics, 3B fielding). 

Clean title no ejido. 

This helps immensely to get sheets and towels clean.