People enter contract due to different reasons. Under the contractual capacity requirement her home purchase contract may be void if only Barb failed to take her medication on the day that she was to sign the contract.
This is known to be a kind of legal contract that exist between a buyer and a seller and it is often made during a real estate sale, sale of company stock, etc.
Here, All parties must have the legal right and ability to make the purchase and it can be void due to a lot of factors such as the one mentioned above.
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