Remember, they will need hand supports so if you tile the walls make sure you save extra material to replace where you need to make holes for the supports.

You also have to know your market - as it was mentioned above, theming is a non-issue in most places but it should make sense for the setting, or people going to the mountains don't expect to see seashells on the walls. 

They did not move the fridge, oven, and every wall needed scrubbing.

They have a ton of Wall St cash that's being gambled as in 401Ks

Mainly, added a wall to officially make it a two bedroom, added two hardwood doors on the bedroom, a closet door, propane stand-alone heat stove (all it had for heat before was a mini-split which is still there), and added some new paint.

I first got interested in real estate investing because of my better half, she always spoke to me about passive income and building a financial wall for our family through investments, so here I am jajaja. 

Otherwise I would walk as significant structural issues like wall displacement, footer settlement, sinkholes etc aren't going to be fixed cosmetically by Joe's Handy Service.

If you and your wife are committed to investing in all cash, I recommend Wall Street.

If so, consider the cost of adding noise insulation to the street-facing walls. 

We basically took it down to the walls and everything is new.