Recently I fixed a leak which was causing moisture related issues (obviously). Upon doing some clean up of the area before reinstalling drywall, i noticed some dark spots, likely mold, on the wood.
I have applied several rounds of treatment to the wood including, soap and water, bleach with water, baking soda and vinegar, and some light sanding. Each time wiping down and thoroughly dried the affected areas.
The wood when dry shows no obvious signs of mold, but when spraying down the wood one last time with a bleach and water solution for peace of mind, darker spots were revealed which were not visible when dry.
Could this be embedded mold and is additional sanding/treatment necessary? Or considering now that the leak/source of moisture is now no longer present am I safe to install new drywall?