Repair Smoke Damage, soot and smoke odor.

[Michael Lauther]

We finally started to repair fire damaged property. tore out all burned material and gutted directly affected areas. Plaster on lathe walls are covered in soot. what is the best course of action demolish and replace or clean walls and paint? I hesitate to start gutting plaster on lathe walls. May be too costly. my main concern is that the odor does not return. I understand cleaning with a dry cleaning sponge is recommended and not soap and water. Serve pro also indicated use of ozone but we removed any soft material and only hard surfaces remain. would ozone treatment be useful?

Any advice is appreciated.