“Having your cousin look into a flood policy in Louisiana was good advice. However, most flood policies have a 30-day waiting period. The reason is actually due to this exact situation.
Insurance companies and the government want to discourage people from buying policies right before they make a claim and then canceling them right after. This behavior would make the cost of flood insurance for people who have to pay for a year-round policy cost even more—or bankrupt the insurance companies altogether.
If your cousin lives in a flood-prone area, tell her to go online to Floodsmart.gov and they can direct her to a flood insurance provider. Or if she has the option to purchase a private flood insurance policy, she will have more coverage and potentially no waiting period—or at least a much shorter waiting period, depending on the guidelines.