That repaint on the auction flip is a nice win!

Maybe appliances and an interior repaint. 

Repainting?

Removing the smell often involves deep cleaning, sealing and repainting walls, replacing carpets and possibly air filters or duct cleaning.

The mold in the closets can be cleaned and if needed, repainted. 

Tenantburns the carpet to the sub floor, punched holes in a door,ripped drywall, smoked in the non smoking housegot bong resin all over the bathroom sink so hard to scrub, the smell of smoke and curry or cumin impossible to get out had a 4000$ estimate for possible reduction in smellsub floor $2000 but I didn't get it fixed yeti repainted it still smells I hired a cleaner I scrubbed it no use!

I had a unit 2 months ago they didn't start moving until move out deadline at 10am, and we had to repaint, repair appliances, clean, replace floors, fix the sinks, before 10am the next day. 

In 2018, the HOA issued a violation and informed us, we need to repaint the entire exterior of the house.  

The biggest lesson I learned from both the GFC and today's market cycle is:If you go in with a long term mindset, you will (almost) always be fine.Short term debt is not an option if you plan on holding 10+ yrs.Capex budgets become less of an issue (I know of more than a few syndications that have fixed rate long term debt, but are suffering because roofs, repaints, foundation issues, etc are becoming real issues now that the deal is no longer a 3 yr hold, but rather a 8-10 yr hold)And like BRRRs, even refi's start to become more realistic when you budget for long term holds.Yield maintenance/prepayments become non-issues when you intend to hold long term.Lastly, like Brian noted, what I see is that if your goal is long-term security in your investment, typically, you go with well seasoned investors. 

Swapping them for new, efficient models is a quick update that looks good and works better5️⃣ Refinish Cabinets:Instead of replacing cabinets, refinish or repaint them.