You can contact owners, just don't solicit that business, you can ask when that agency relationship is to expire.

Absolutely.....I see more and more people wanting to wholesale then put contracts on properties with no buyers....then the contract expires and they want constant extensions.

I’m not to sure how to calc late rent for 3 weeks late tenant.Thank you for your help  When is your lease expiring? 

Close to your contract expiration date if you can't get a buyer or selling, you can ask for your earnest money back with an excuse that you can't get financing. 

Generally speaking, the borrower must start foreclosure prior to expiration of the SOL, assuming there are no mitigating factors such as a bankruptcy stay. 

More broadly speaking, what strategies do you utilize to find off-market properties aside from mailing letters/cards, advertising on social media as "I buy houses", connecting with wholesalers and checking expired mls listings?

If it comes into play, I would argue the ordinance applies to both units because no one knows what will be legal when the 5 years expires.

If you raise the rents as leases expire then I suggest doing some work to have the tenants realize that you are improving the property. 

Unless there’s a strange law there, you can raise the rents when their is an expired lease and with proper notice (usually 30 days).

I had one with Naveo bank that just expired (5.5% fixed, 75% ltv).