[Zeke]

Is the place carpeted? I think a good quality cleaning of any carpet is a good thing followed by proper drying. In your case, that would be heat and de-humidifiers. If it was my house and had carpet, I'd have the carpet cleaned outside and re-laid over new padding. In the meantime I'd use a moisture meter on the slab and lower walls.

No one should have to live in circumstances like a moldy smell for a year.