Modern gas stoves and fireplace inserts are sealed (airtight) with respect to the living space (room) and vent their combustion air from outside - typically a separate pipe through the side of the building or a centre pipe within the exhaust flue (either through the side of the building or as a sleeve in an existing chimney.The cheapest way to stop air and heat from being drawn up your chimney is to decommission your fireplace; stuff insulation in the top of the firebox against the closed damper; then tape a sheet of 6mil poly (vapour barrier) under the insulation being certain to create a seal with the sides of the firebox all the way around the perimeter of the barrier.Since you still want to use your fireplace periodically, but do not wish to incur the expense of installing an airtight insert, you could still attempt to plug the top of the firebox when you are not using the fireplace.  

Meth leaves a chemical residue behind that will seep into walls, so you'll have to use something pretty strong, and wear respiratory and skin (gloves, sleeves and goggles) protection.

If it is a matter of staying on the sidelines (LLC) vs. getting started right away (personal name), I am rolling my sleeves up and taking the risk.   

My demeanor, communication style and Carlton Sheets program that I spent $145 on and expect a ROI willingness to roll up sleeves for long hours of sweat equity are absolutely grounded in business ethos.

You could just be having an allergic reaction to the glue in the wallpaper, which would be an easier problem to solve - be sure to wear gloves and long sleeves.

Get some cool skills under your sleeves.

I had to roll up my sleeves and get to work. 

These folks have much shorter time frames for achieving their goals and tend to think out-of-the box (@Brandon Hicks is an example) or have a bunch of creative strategies up their sleeves (and are usually questioned as to their validity) or venturing into "rougher" territory.Those that fall into the second camp tend to get cornered and interrogated an awful lot.

And yes problem area properties can be profitable like your instinct says - just be willing to roll your sleeves up and endure a lot of headaches.

Yikes, seeing stuff like this sort of makes me not want to be a landlord.But have any of you guys who experienced some sort of discomfort between possible future tenants, have something up your sleeve likeif you suspect something bad is going to happen and you say something like "assualt me and I will sue you" do you think the person will stop trying to be intimidating?