We had to repaint the entire unit because the material he used left oil stains everywhere.

. $3,000 is reasonable for a full repaint.

Per the mutual agreement between the Lessor and the Tenant, the Lessor has agreed to reduce the monthly rent from $3,200 to $3,100, allowing the Tenant to repaint portions of the house at their own expense.

Conducting a thorough property inspection or consulting a contractor can help identify potential large-ticket items you might need to replace soon.For make-ready costs, you can look at local averages for common turnover tasks like repainting, carpet cleaning, or minor repairs.

On top of that, we repainted the house to boost curb appeal and really make it stand out.

As such, they want to repaint, have some deferred maintenance that needs handled in next several years, and therefore pause distributions to LPs, to fund those additional improvements out of operating cash.  

Coincidentally I had a rental that had come open and needed a couple of rooms repainted.

. - We also have S8 tenants move because the owner won't agree to repaint, replace carpeting, etc. - that were new when the S8 tenant moved in 1-2 years ago.Another challenge of finding S8 tenants is many EXPECT you to waive application fees and security deposits. 

Many unnecessary things are repainted, redone, replaced, and rebuilt.

Stuff as simple as replace cabinets/counters and repaint.