If actions by the tenant in a NNN lease leads to a contractor placing a mechanics lien on the property, and assuming the lease agreement does not specifically address this scenario, what options are available to the landlord to resolve this?

I rent specifically to contractors working short term jobs at a local petroleum refinery.

First step would be connect with a local lender familiar with the strategy specifically utilizing fha loans.

Maybe talk to a real estate agent or financial advisor to get some more specific advice tailored to your situation.

Every state I've looked at has laws that specifically address property abandoned by a renter.

There are even lending programs specifically for this.4.

It takes reps and reps to do, and generally having a commercial specific calculator for the assets you are looking at would be helpful. 

This is a pretty broad question and the answer is always going to be very area specific.

If you're ever interested at WealthAbility we host events specifically for tax professionals.

Year of update of the systems (roof, plumbing, electric, heat)4. any pets, pools, tranpolines, or business use at any locationThey will usually need more specifics but this is a good start.