Hi @Carol Klein,
To be honest, it really depends on the person. Unfortunately there are a lot of bad property managers out there who charge exuberant fees, or you have to spend just as much time managing as you would the property, or both. That being said there are some diamonds in the rough who will take amazing care of you, and make your life ten times easier.
My advice would be to take your time to hire and be quick to fire. You may have to go through a few before you find one that works best for you, but in the long run it will be well worth it. One thing you should always agree upon before entering into an agreement with any of them is how they will be paid. In my opinion you want to look for whoever has the most straight forward, clear, pricing model so you know exactly what you're paying each month and how they charge for maintenance. A good indicator of their overall character is how they charge you for tenant turnovers, those that charge you more for a turnover I steer clear from because their interests aren't aligned with my own. I prefer working with those who use a bonus model, where they get a bonus if there isn't a turnover, rather than those who are paid EXTRA every time there is one.
I'd be more than happy to answer any other questions you'd like to ask. Feel free to direct message me if you'd like.
P.S. Here is a helpful BP article to reference for some tips on how to pick a great property manager: https://www.biggerpockets.com/renewsblog/2011/02/2...