Inspect the Best Commercial Real Estate Listings in Marlborough, MA At tough times, most of you look for a way to cut the cost. And in house purchase, who wouldn’t wish to save the extra 3%, means a minimum of $3000 per $100000 of the sale price? And this is typically what the buyer's best real estate agent makes on real estate transactions. Many experts also think that its money well spent. But, overall, if you want to satisfy your significant investment at the right property, you must hire a realtor to buy a property.