You can approach the property owner to negotiate a change to your lease, but both you and the property owner must agree to the new terms to make the change. If the closures and restrictions required by Oregon to enforce social distancing are affecting your ability to pay your lease, reach out (or have your attorney reach out) to the property owner right away, before you miss a payment. It may be more difficult to negotiate changes after you miss a payment and are already in default; plus, it is the respectful thing to do. Most property owners will appreciate that you’re being proactive. If you have a difficult relationship with the property owner, though, you may want to have your attorney review your lease first and then have your attorney reach out to the property owner’s attorney.