1. Researching your home's value
An agent will have the pulse on the current market. Together, you can review how much comparable properties have been selling for and how long they stayed on the market. The agent can provide a realistic idea of what your home is worth, and how fast (or long) it could take to find a buyer.
2. Working with your budget
After you learn what your current home is worth, you'll be able to hone in on your options for your next one. An agent can give you an idea of what types of properties and which neighborhoods are in your budget. And a good agent who knows the area will also be aware of local housing trends and can advise you when might be a good time to buy.
3. Making your home market-ready
There may be work to do before you put your house on the market. A Realtor can help you prioritize repairs and also recommend a home inspector for "pre-inspection" opinion on features like roofs, furnaces etc.