Your job is to estimate how much life is left in each element, thereby predicting when it will need to be replaced or have major maintenance.

You’ll never be able to predict/control your expenses.As @Theresa Harris pointed out, your tenants will have no reason to conserve if they’re not paying the bills.

Obviously, you are predicting that the home market will increase, and you would like to lock in the price of that home today? 

Going from predictable income to feast or famine and pacing/budgeting expenditures regardless of how much was in my bank account was an adjustment.

When we obsess over predicting the future, all we’re really doing is procrastinating progress.

I would say for me the interest rates, the recession that's coming will drive people to sale and I predict a lot of foreclosures with decreased interest rates.

Also, you might want to put in a time penalty; i.e. payment will reduce 5% every week after X weeks (and X weeks should be plenty of time to finish, not their exact predictions as contractors always take longer than expected so you want to be reasonable). 

If tenant is found to have smoked in Premises, Tenant shall be charged $XXXX as liquidated damages to Landlord, and $XXX as a Smoking Cleanup Administrative Fee to Broker, it being hereby agreed that the actual cost of repairing said damage is difficult to predict, and this amount is a reasonable estimate of Landlord's damages and shall not be construed as a penalty.DM me if you would like to discuss this further.

I'm curious to see the next decade or two, but predictions are being made that the bigger STR companies are heading out.  

Isn't it very tough to predict which properties will appreciate.