That is when you need to replace carpeting, paint walls, replace lights or plumbing fixtures, replace doors and repair windows, etc. 

No disrespect, but I think this is a complete waste of time and energy.   

Give them your business card with phone number and tell them that if you see anything suspicious call the police and you no matter how late or early.Gray area stuff, the home isn't yours and you could be in hot water if the listing agent or seller find out that you placed a cage over the unit before you close so tread very lightly.   

Adding in a light reno will force appreciation even higher.

Yes, it was crappy of them but any further time or thought put into this is a total waste of time and energy.....move on. 

If you're looking for rentability, check Spring Branch, Energy Corridor, Memorial, Heights, Sugarland, Pearland, Jersey Village, Montrose, Medical Center.

In the area that I live, it is quite expensive to hire out even simple things like cleaning or changing a light fixture or door handle.

You're asking someone to spend a lot of time and energy to share what they've spent years - maybe decades - learning and developing.

@Vivan Bhalla Love the energy man.

Even if you didn't have a job, the credit and/or DSCR is usually sufficient to get the green light.