The most important party at the inspection is the buyers, who should attend if possible. They stand to gain the most from being there. Secondly, the buyer's Realtor should attend. The seller's Realtor is also often present to protect the seller's home. However, the seller's Realtor can play against the home inspector unintentionally. Lastly, the seller may prefer to be present. However, it is nearly always best if they vacate the home to allow the buyer to feel free to ask questions of the inspector without feeling rude or watched.