It is possible to sell a house without using a realtor. One option is to sell to a cash buyer, such as an iBuyer or house buying company, which can provide a fast sale but often at a lower net profit due to higher transaction fees. Another option is to sell the house through the for sale by owner (FSBO) method, where the homeowner manages the entire selling process from beginning to end without the help of an agent. This option can save on real estate commissions but can be challenging due to the need to research the home's market value, set a competitive listing price, and handle marketing and advertising efforts. To successfully sell a house through the FSBO method, it is important to do your homework on homes sold in your area, get a comparative market analysis, and invest in home marketing and advertising.