1/4 drywall over popcorn ceilings and wallpaperMudjacking can be an alternative to replacing concrete in some cases.Resurface old tile, tubs, and countertops if they're in good shapeDefinitely vinyl plank in rentalsNew scratch and dent appliances, if you can find them.Amazon for pretty much all plumbing and electrical fixturesRip down  3/8 plywood for cheap shiplap.Using contractors who are budget conscience can save a ton.

Take even a small bathroom remodel.....What type of tile is being installed?

We would like to be able to continue the pattern of leveraging equity and OPM in to the next property. 

Connecting with local real estate investors and getting advice from experts can help you understand market patterns and investment techniques.

In your experience on these nicer properties, is there any typical pattern for how much they sell for (i.e. 75% of the fair market value or something like that) or is it all over the place or dependent on the specific property or the competition on that particular day?

If you have the budget and the time and know how, tile might be better in the bathroom.

Sitting at the intersection of machine learning, these algorithms learn from vast datasets to identify patterns and make informed decisions.

At closing the buyer ranted how much she loved the place, every feature, the built-in's I made, the slate tile, and how she got such a great deal and paying our closing costs was well worth the deal. 

Specifically, shower tile with grout missing, tiny thin grout lines, gaps in overhand coverage/not sealed, and the list goes on.

I also have purchased some tools that I thought he would have, such as chain saw, tile cutter, etc.