It can be a good idea to retain an expert in construction matters, such as an architect or engineer, to help you evaluate potential claims against the seller of a property that has defects that were not disclosed to you. An expert can provide valuable insight and expertise on the nature and extent of any defects that may exist, as well as the cost to repair or correct them. In addition, an expert’s report or testimony may be useful in negotiating a settlement or resolving a dispute with the seller. However, it is important to keep in mind that retaining an expert can be costly, and you should carefully consider the potential benefits and drawbacks before making a decision. It may also be helpful to consult with a qualified attorney to discuss your options and to determine the best course of action in your specific situation.