Ohio, you can start with one hive if you want. Nothing is written in stone in bee keeping. There’s arguments both ways with regards to how many hives to start with. Most beeks with experience will say to start out with more than one because you can use resources from one hive to help another in the event of a problem. That’s what experienced beeks do when we have a problem.
However until a new beek has a descent amount of experience under their belt, it’s my opinion that starting multiple hives is more likely to result in multiple failures and expense than massive success. It's hard to be perfect the first time you try something new. An investment analogy might help me express my opinion here. If a person hasn’t traded cattle futures before, would you start by trading a bunch contracts or just trade one at first? Doubling down isn’t always a good idea when you first start something new. (Yeah, I started with one hive, I only wish I had taken that wise approach when it came futures.)
Central Ohio has a pretty good climate for growing plants and probably bees. There is a good chance one hive could really take off in your climate and hence you could split that one into 2 or 3 in July if you wanted to. What I might do in your shoes is start with 1 package in the spring. If that really takes off, then split into 2 or 3 in the July and raise your own Ohio queen(s) via a walk away spilt. If the package fails for some reason in the spring, then I would re-start with a local Ohio Nuc/Hive in June. (Another good reason to listen to Frameshift regarding Long hives – you could move nuc frames into it)