Realty Partners, Inc. is being sued by a buyer who bought a home listed by Realty Partners. Realty earned a commission on the sale. The buyer is suing because the house has termites. Realty had obtained an inspector's report that described the home as "termite-free." Realty has brought the inspector into the lawsuit (added inspector as a cross-claimant). What type of information does Realty need, and how can it be obtained