Honestly, if you are out of state you should probably be hiring property management regardless of troublesome tenants in the present.
i don't know how experienced you are as an investor or if this market you're buying in is one due for exceptional appreciation but realistically $160/mon cashflow is not a move i would suggest in the short term considering you're a world away and any number of things could go wrong that would wipe out a years worth of cashflow overnight.
Even a typical water heat replacement would set you back signficantly.
There's plenty to the puzzle that i am unaware of but with what you've outlined here i would consider passing on the property.
you know you need management
you know you need to remove at least one tenant
you know cashflow is meager after considering management.
i personally wouldn't recommend a client take on the risk for such a paltry pay out out of state.
Even when considering long term appreciation the average amount of headache one assumes with a property will bog you down before the long term play pays off.