I agree with Mike go to Home depot they have acid cleaner for grout to clean it also where your Ppe so you can protect your self all the way around you can also use the grout renew as well but once you get it clean and the color to original look seal it so it can stay refresh for a long time 

She has to have someone come every year and seal any tiny little holes they find to squeeze in or else they'll just start filling it up again.I'd love a house like it, but I do know it would probably not end up being worth it for a flip but if the numbers really make sense then go for it; it would definitely be a way cool house to flip.

Or you hire an environmental firm to do the job - they will seal the area while working and check air samples afterward, and they handle all disposal too.

You could probably seal in the meth with a floor to ceiling spray paint job and get it to pass a meth test but I wouldn't spend too much for a meth house if they are requiring it to be gutted completely

I seem to recall reading that this seals the smell in and requires the sheet rock to need replacing.

We sealed it, dry walled, put down some laminate tiles and repurposed cabinets I had in my craft room upstairs that had been just storing junk.

Sealing up holes goes a long way.

Use Kilz to seal the floor.  

At the moment I'm focused on breaking the seal on my first investment and learning as much as I can through BP readings, podcasts, books, talking to peers, etc.

Our contractor suggested that the bricks could be sealed (maybe), but on looking at the photos said these are too far gone to seal.