How can my husband and I WIN the case?

So this past summer my husband our kids and I we went to a wedding for a ungreatful Karen couple not only did this couple referred to my sweet kids as demons. When my husband and I we were dancing together on the dance floor having fun my sweet husband fell down and injured his back. Long story short were sueing the couple and venue and the Karen couple we don't care if they're have to skip the honey moon they better pay for the spends we had to make since we came from our of state. The venue should had installed more safe and secure flooring-tile how careless and I responsible of a business establishment. Now this couple will pay for everything my husband and I spend since they didn't want our kids included in their ugly wedding and this 32 year old couples you would expect then to act like adults but no they decided to be spoiled selfish Karen's. Will my husband and I win the case? I hope so , It isn't fair my sweet kind husband injured his back.

How can my husband and I WIN the case?
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