Need help determining whether I have a good deal

[Jeremy Mohler]

Hi friends, this is my first post and first property.

I'm under contract on a row house in Baltimore at $307,000. About to do inspections, but want to make sure the math is right. It'll be a house hack at first. I plan to live there at least a few years. There are three levels, each with its own full bath and kitchen. The math for after I move out initially penciled out as a 3-unit, but I just learned from the seller's agent that it's technically only a 2-unit. The two lower units are on the same electric meter. The top unit has it's own. I'm wondering what determines how many "units" are in a property. Is there any reason I couldn't rent the bottom two units to two separate people?

Jeremy