I would have never noticed this if I hadnt pulled the wall myself.Demo is pretty easy as you see on those hgtv and DIY showsa few simple tools like a cats claw or wonder bar hatchet. or hammer is all that is needed.wing the back of a hatchet or cats claw and make several holes in a 3x3 areathen stick the other end into the holes and pull it is pretty simple after it is all removed if you want you can remove the screwsbut most contractors will be checking for screws as they hang drywall anyway and the good ones will be happy to as they will reuse the scres.doing the demo can shave a thousand or so off of the price.what about the mess?

Don't assume that I was trying to screw the guy.

some want $50 per sheet and they take care of the whole thing. 70*50= $3,500 all included**** DYI ***Materials  $800, about $11 a sheet in materials. 25lb #8 screws, 1 1/4"250 feet of tape70 sheets 1/2" drywall6 blue buckets4 green bucketsPaper corner bedsDelivery feeLabor Only70*20= $1400 in labor  + 800 materials - $2,200 cost

I talk to people about the process, what I do to sell a house, and if asked point out the common ways certain agents or companies screw up selling a property.

(Any company putting siding over it will be disturbing the asbestos due to nailing, screwing, ect.)

So if the OP doesn't present that fact to the seller, I would say he is screwing over the seller because the seller thinks the property is sold, when in fact it is not. 

Time and time again I see novices do this and get screwed...but come out of it thinking they got a good deal.

When you do find one off market your buyers can't screw around.

Without an Exclusive Buyer Broker Agreement, the agent can work with you for months and still get screwed on getting paid because you took a second look at a property and another agent happened to be there that day and offered to "write up the deal for you."  

I'm not looking to be greedy or screw anyone over, I just don't want to lose money because they chose not to read the contract before signing.