This happens with me several times a year.

I only go to sale on about 40% of my foreclosures over the last several quarters. 

With a land contract, you still have liability risks and if the buyer ever incurres liens or judgments, they will attach to your property.

You've got a technical problem that involves several things.

Pursue legal action against the county and risk future cooperation from them?

(Possibly several) If it was me, I would shy away from short term rental and stick with what you know works.

So it's higher risk and doesn't have the long term security of real estate.

So I get one the phone and the tech starts telling me the unit is old, and to fix it will require several parts and even then they can’t warranty the work because of the age of the unit etc… I ask him how much and he says, more than $1500 for a new main circuit board and several other parts he needs to price out.

Due on sale clauseI would like to hear people's opinions on this strategy if the risk/reward is worth it or to steer away

Real estate has some advantages over other investments, but ultimately the goal in all investing is to maximize return relative to perceived risk.