Signs of this are poor lease quality, maybe M2M tenants, high expenses (unnecessary things like high trash bills, internet, cleaning, security).

Charge the old tenant for cleaning and repairs, unpaid rent, and other expenses.

As the owner of the tree, it’s almost always your responsibility for clean-up and debris removal.

I've got the common sense items such as clean the lint trap, report leaks ect.

Clean it up a bit to get most bang for the buck add ons and preventative damage items like water leaks.

Wholesaler had it for $90k "as-is", another wholesaler bought it, cleaned it out, and relisted it for $120k.

One of my friends uses comped quarterly cleaning as their inspection day and trains the cleaners to take photos and videos of everything.

I would add that you can go a long way just having some clean color schemes (two wall colors and one trim color will do almost any house) and a few tasteful accent pieces. 

We have a few of these (not this brand but they are all the same IMHO) and they will help keep the sofas clean$89.90 - uhome 8.5qt Stand Mixer - https://www.walmart.com/ip/uhomepro-8-5QT-Stand-Mixer-Home-C...This is intriguing to me.

This was an Oct 15th acquisition and took about 2 months to clean out and repair/rehab.