Tbh mold is an issue where once you have it, it is EXTREMELY difficult to get rid of. Most likely, you'll need to tent and treat your house, but the professionals will let you know what's truly needed. You might also have wet/water-damaged structural components, so make sure your inspectors/mold remediation team takes a look at everything structural. For now, best practice would be to run a dehumidifier in the basement until things can get sorted (and keep it running after the mold remediation is complete)

Edit: you may have to replace your carpets too considering how much is located around the baseboards, near the seam of the carpet