main_track_o...Rock on!

Sometimes people get paralyzed by analysis, wanting to have 100% certainty, but if you have laid the proper groundwork, you should be able to put pencil to paper or fingers to keypad and figure out what your rock-bottom break even is, your pie-in-the-sky potential, and whether you can settle out in between those two figures, and which one you'll be closer to when you do settle. 

You are rocking it brother!

@Kris Haskins - Basically you are caught between a rock and a hard place for several reasons.1.

I really need to add some of the worst pics of this house...many people have commented on it not being that bad, it was worst then the pics show, its by far not the worst at all that I have seen.A lot of people stay away from hoarder houses because of the cost to get rid of all the stuff, you usually have to kilz the floor, remove a lot of sheet rock, and because there is so much crap (literally at times) that you cant see all the hidden issue potentials.I have posted on craigslist ads with some success, I also network a lot and ask for referrals all the time when looking for more contractors.A lot of the house was junk, but one of the reasons I liked this hoarder house was that they had a lot of new stuff as well hidden. 

Being a rock, with constrained sprawl and a health resource (offshore oil) industry, I understand that property prices in St.

I agree with Jacqueline with getting your real estate license and learning from all of the great free info on B and a mentor is key. 

However, if you have property fire and sound proofing between the units - floor cavity filled with layer of dense rock wool insulation (fire break) along with resilient channel and 5/8 fire-x drywall on the ceiling of the unit below - sound transfer from the floor to the unit below should be minimal.

There are no class B and C being built in the urban cores but there are some A's that will slide like @Dmitri L. pointed out.

HB rocks!