Just two? The primary two costs of renting are renters insurance and time and money lost towards what could have been equity in your own home. Most professional property management companies will require you to have rental insurance and will know if it is cancelled.
From the owner of a houses perspective there are many costs as well. Maintenance and repairs will be higher without a property management company. Your homeowners insurance will be slightly higher and if you purchase an investment property the interest rate will be higher and you will have to put more money down. Still, this is a long term way to build great wealth if good decisions are made. Thank you for asking, What are two costs of renting.