Kind of nervous because being in something as illiquid as land always strikes me as risky.

yes, you can approach the homeowner and attempt to strike a deal with them to payoff the line. the house most likely has a mortgage thay wont be paid off so u should figure out your strategy with that in mind.

Do you use a boiler plate contract that does not have that clause or can you strike out that clause? 

The term Force Majeure shall include, without limitation, acts of God, plague,epidemic, pandemic, outbreaks of infectious disease or any other public health crisis, including quarantine orother employee restrictions, fire, explosion, vandalism, storm or other similar occurrence, orders or acts of military or civil authority, or by national emergencies, insurrections, riots, or wars, or strikes, lock-outs,work stoppages, or other labor disputes, or supplier failures.

Option  6) shifting to medium stay bookings - could also be done and your market/listings may be better suited for it, your management would know where to strike the balance for length-of-stayIf they do a good enough job to keep you from hiring 3rd party maintenance, housekeeping, etc., you should end up covering at least most of their commissions with increased revenue.

As a realtor, I see people missing a lot of good listings in MLS just thinking they always need togo direct to FSBO or strike deals w/wholesalers.

I would guess if you didn’t share and the issue resulted in a lawsuit, not providing the lease would be an automatic strike against you and the judge would lean in favor of the tenant. 

Yeah, maybe the train workers go on strike.

You may want to strike up a conversation with them and network. 

Unless I am able to come up with a plan, or my siblings suddenly strike it rich, the current plan is to just sell the house and split the profits three ways.The best plan I had was to have the house left to me, I would refi for 80% of the value, give each of my siblings $100k and then use the remaining equity to put an ADU on the property.