The role of the professional real estate advisor

Definitely necessary.

A real estate agent can help you and offer you a large number of benefits, in addition to supporting you in the purchase or sale of a real estate property. 

• Market knowledge: An expert agent in the area knows the market and knows what to do at all times to speed up the sales process. They are specialized professionals.
• Advertising your property: They know the best means to promote your property.
• MLS (Multiple Listing Services): Most agents have access to an MLS property listing system, at least in the United States. This system provides communication between professionals, which facilitates that the offer of the property you want to promote is in the hand of your agent and multiple agents.
• Greater security and time to serve clients: Real estate agents have contact with clients before you can, which results in improved safety for you and yours.
• Legal issues: The knowledge that a real estate agent has, helps avoid fundamental problems in buying or selling a real estate property.