Taxes, utilities, heating costs, construction costs, insurance cost, the cost of a new property (build or buy) are all going up. The title on this article could have easily been '$insertAnythingHere going up faster than wages'

I can speak to the 'mom and pop' landlords. The best you can hope for is that your properties are paid for. If they're leveraged, it's a razor thin margin where are one roof replacement, furnace replacement, or state/local government deciding failure to pay isn't grounds for eviction away from losing money.