Actually posted about this a couple of months ago after the Trump Effect brought MF interest rates up .75%.
It's all about the cash returns. YES, it now costs more to borrow. So, if x% cap bought you x% CoC return 3 mos. ago, the same x% cap rate now brings you a lower cash return. How to avoid that? Pay a lower price or put less down. Since the latter isn't feasible in most deals, you need to pay less for properties today than you did on Nov. 7, 2016. How much less depends on your spreadsheet calculations.
Cap rates DO go up. The Law of Averages is a law. Things revert to the mean in most cases.
How to avoid? You need to be using an EXIT cap in your calculations that is higher than your purchase cap. For example, I'm currently in an area with 7.2% average caps. Do I think they will be 7.2% in 5 years? 10 years? Nope. So, I plug in an 8.5% cap rate as my exit cap. Result? Little to no appreciation; possible decline in values. What to do? Buy at an 8.5% cap now, or do something to the building that will make it still be a 7.2% cap in 5 years.
As for loans: You are taking a big risk if you take out a loan with a 5 year call right now. Look for 10 year money so you can make it through the downturn.
Does that mean we should cower in fear and not buy commercial RE? No, that's not logical. Proper planning and budgeting is always key. Once again, it's all in what you pay when you buy. Play with all the possible scenarios and always choose a conservative approach. And NEVER believe the broker's pro-forma. Ever. Never.