As someone else said, you should be careful and consider what your rent is versus the market. You moved in 2009 it sounds like, in the middle of a very bad economy. Rents are up like 30-40% since then. If you are paying $2100/mo for a house that rents for $2600 a month elswhere, that 500 a month savings is $6000 a year. Maybe you should keep the good deal going by spending some of that savings and making the repairs yourself.
If you don’t like the PM and want to cut her out, sounds like the best way to do that is show the landlord you can deal with repair issues yourself.