A title search is aimed at processing mortgages when it is time to close a loan. It primarily serves three things. First, it tells the lender and borrower whether or not the seller of the property is interested in the negotiation. Second, it also discloses any restrictions that could limit the use of a property. Finally, it also exposes liens against the property required to be dealt with before the lien is closed. Given the complexity involved in the work, it's best to farm it out to a reputable title company.