HELP! Dealing with PM and Tenants that abuse maintenance calls

[Dimitri Wilson]

New investor (8 months in) investing remotely in Indianapolis. I currently own a SFH and Duplex both being managed by the same PM team.

Apart from the expected late rents from C class tenants, the monthly maintenance calls has gotten me alarmed and concerned. From the way things are going, I project maintenance calls alone would eat up to 30%-40% of gross rental income.  (see attached for past work orders)

Any experienced investor can tell me if this is the norm for investing in working-class housing? How should I go about resolving this issue with my PM as it is clearly in their interests to respond to as many service requests as possible for extra income and have an easier time dealing with tenants?