Or if anyone has had any other similar investigations with remediation in the area.  

I filed an insurance claim on our landlord insurance and got a remediation team in there immediately to stop the damage.

Additionally, moisture in the basement with possible fungi growth could mean mold, which can affect air quality and require professional remediation.

How can I remedy this and what is the timeline?

You are known by the company you keep, and deals with undisclosed problems should result in helping remedy it, or cutting ties.Even looking at the investment portfolio, seeing crypto in there makes me wonder if they were going too broad into areas they didn't know, just for the potential.Taking money just days before does look questionable.

We had a major blow when last year mold was brought to our attention , that as a 20,000 remediation that had to be dealt immediately.

They believe that all but about 1 acre of land can be remediated with a LOMA for flood zone.

They believe that all but about 1 acre of land can be remediated with a LOMA for flood zone.

If the remedy was designed by a qualified professional, the work carried out be an experienced contractor, the work was permitted and inspected by the town, then the value reduction would be zero.

Remedy after termination.If the rental agreement is terminated, the landlord may have a claim for possession and for rent and a separate claim for actual damages for breach of the rental agreement, reasonable attorney fees as provided in § 55.1-1245, and the cost of service of any notice under § 55.1-1245 or 55.1-1415 or process by a sheriff or private process server, which cost shall not exceed the amount authorized by § 55.1-1247, and such claims may be enforced, without limitation, by initiating an action for unlawful entry or detainer.