PAR members have free access to electronic, fillable standard forms through Lone Wolf Transactions (zipForm edition) as a member benefit. PAR's Buyer Agency Contract includes all of the legallyrequired language and allows for a buyer's broker fee to be structured in several ways.A Commission Agreement for Sale is used for one-time showings of real estate so a Realtor can show a home to a prospective buyer and be paid a commission. A property owner agrees to pay a commission to a real estate broker for a single showing that results in the sale of the property. This is going to be how to fill out the agreement of sale for pennsylvania. Looking for a Pennsylvania real estate purchase agreement template? Download this free version today. Resources and Documents. (This is the one-time MLS listing fee). Owner agrees that this fee is non-refundable upon activation of the listing in the Multiple Listing Service.