Any agent who tells you otherwise is to be viewed with great suspicion. Don't listen to talk about how many weeks of rentals you can expect. Talk dollars and forget the agent who says you can get 20 to 22 weeks of rentals. Ask to see the monthly statements for comparable properties. Scrutinize costs carefully.
All agents take a percentage commission of the rents collected.
After every occupancy, the property must be cleaned and fresh linen provided. Be sure you understand where this cost goes. If you do, that means they are laundered in your property using your appliances and your electricity. Also there will be an expense as linens and towels wear out or vanish. Another cost issue involves maintenance.