HVAC or wall units?

I'm currently reading "The Book on Estimating Rehab Costs" by J Scott, and maybe I'll get to it later in the book, but do I need to pull permits and submit architectural drawings in order to say, remove a wall, load bearing or not?  

The DEA kick the doors in ripped all cameras, alarm, controlled access off confiscated everything out of the building put holes in the walls.

I love the color you used on the walls going up stairs, if you don't mind me asking what is the name of the color and brand?  

The older homes had wood paneling as walls, high fire danger, but help up well in moves. 

A newer more efficient window could help and some foam board insulation possibly on the stone foundation walls could prevent the temp from dropping as well.

In the past tenants have used window ACs but have resulted in significant water damage in the walls.Question: I was considering alternatives to window ACs including: central AC, split mini ductless AC, through the wall ACs, or portable ACs (ones that look like dehumidifiers).

It would be great to have a documented album potential buyers can see that showed you just didn't make it pretty to look at but actually spent time and money behind the walls.

He ended up taking the dishwater’s supply line and letting it leak into the sink.Finally the next day the management company sent the handyman out and the water supply was fixed.A few days later the smells start.Despite repeated calls from the tenant the PM does nothing, no one goes to even look at it.Finally about May 3rd the handyman shows up and they take the floor apart as seen in the photos.Now it gets interesting.The management company says the problem existed before, could not have been caused by the leak.The handyman claims there were only a couple of drips from the water supply line (despite the tenant’s description).I had a mold company come in, they did moisture testing and determined the water goes under the cabinets, under one wall and into the hall and down into the garage below.

Filthy walls but no holes, cracks, or large dents.