When we started out investing we were both working full time plus (60+) hr a week jobs. Our property manager basically handled everything. We would only get a phone call, email or text if a surprise repair popped up over $300 or a turnaround was needed (they would consult on any potential upgrades during the turnaround). They handle finding tenants, leases, collecting rent, repairs, evictions, code notices, rent increases, even submitting property tax assessemnt paperwork to the county. They also help find new properties when we are looking to expand.
Their rate is at the top end of what you typically see, but the freedom we have to continue to work full time bringing in new money to chase other investments with is well worth it.
Just make sure your agreement spells out EVERYTHING that this particular management company will be responsible for. Some charge a flat rate on collected rent. Others you pay them maybe a little lower rate but they take the 1st month rent and/or deposit on every new tenant. Depending on the average stay of tentants in the types of property you own one over the other may be better for you.
My opinion is if you want to be an investor and not a landlord then a quality property manager is your most important asset. Until one day you own enough properties to start your own property management company.