I see/hear locals investing out of state since San Diego is expensive which I understand and certainly agree.

I agree.

I agree with several others here, speaking to an architect or maybe city planners who can give you a better idea of whats to come in the next few years.

I do agree that Craigslist is a lot more work. 

I agree with the above; do nothing.

She suggested evicting the tenant - which I agreed with. 

I have not bought from MI but visited their office and agree their service and properties is top notch.

Most state regulations require a landlord to evict a hold over tenant if they do not leave voluntarily.You should not have agreed to allow them to stay beyond the end of their lease.

I completely agree with @Paolo AgostinelliPittsburgh has pockets where you can pick up properties around $10-$30k and other areas that a $200,000 house needs gutted for resale at $400k+So many opportunities and options.

Additionally, you could charge a penalty fee and take it out of the tenant's deposit if they go against the agreed upon terms.