S, 16, inherited a townhouse. Because she wanted to study in an exclusive school, she sold her townhouse by signing a Deed of Sale and turning over possession of the same to the buyer. When the buyer discovered that she was still a minor, she promised to execute another Deed of Sale when she turns 18. When S turned 25 and was already working, she wanted to annul the sale and return the buyer's money to recover her townhouse. Was the contract of sale void, voidable or valid? Can S still recover the property? Explain.