Hey Unc, I might let that one become firewood. From way over here in MD that crack looks like it goes to the ground. We've put 1" through bolts at the top of the crack and a cable farther up. On the cable I'd use through eyes too, not lags. I guess it depends on how much weight there is in the canopy, but I've seen 6" and 8" lags pull out. I prefer to use cables as support and preventive measures, not trying to postpone the inevitable. The other thing is your Pro may want to lighten up the canopy to relieve some of the stress and sail effect in the wind, so, you may wind up with as much money in it as it would be to take it down and make the structures and tenants truly safe, Joe.
PS: whats the EAB situation in your area? Might be saving it to feed the beetles.