Don't just count on a home inspector. Most are not trained to look thoroughly enough.
Also, ask for reports from the homesellers for any remediation work they had done. They will have to disclose that information to you. Not all remediation companies are doing the job correctly.
First, I would go to city hall and find out what area s the flood caused any damage.
Second, although I will tell you my Brigantine listings had no water damage in the area, you do not
know who I am if you had not dealt with me.
Third, if I am interested in a property, I would insist on a Sellers property condition report
Fourth, A home inspection by a reputable company will be able to tell from water lines left on
property and by doing a thorough inspection.
Fifth Always do your own due diligence work
Hope that helps!