I am not from your state, but do have much information regarding Commercial Drivers License. In most all states now, any truck/trailer combo above 26,000 GVWR requires CDL.
If you were towing these combinations recreationally like most average weekend goers are, you are exempted from needing a CDL. But since you are talking about hauling "for hire", or for "business purposes" a CDL may be required depending on your rigs GVWR.
In Ohio, if your truck is say rated for 14,000# GVWR, and your trailer is rated for 12,001# GVWR, you are then automatically required a CDL.
Needing a CDL or not then all depends on what your truck/trailer combo GVWR ratings are.(Its not based on the actual weight of your rig, but what the carrying capacities are)
I believe most states in the US are like this now....
