@Ashley Guerra - I live and invest outside of Philadelphia, so I can't comment on your specific markets in central and south Jersey, but can provide my perspective on things to think about to help your decision.
1) I would consider speaking to 3-5 people/investors in each market you are considering (central and south Jersey) to listen to their thoughts on pros/cons of the area and how they invest. You can get a good feel by speaking with others. If you need help, I would attend SJREIA or whatever equivalent there is in central Jersey as well.
2) I would suggest buying a property (SFH or MH) in a location you can get you within 30 minutes, especially for your first deal. You'll likely need to be there a lot meeting contractors, agents, tenants, so you'll want to be close.
3) SFH vs. MH? Either can work in the long-term, but if I had to do it over again at 23, I would suggest a 2-4 unit that demonstrates the ability to cash flow assuming all units are rented. You'll benefit greater from the appreciation and loan paydown in the long term and in the short term it's not much more to manage a duplex/triplex compared to a single family if you're managing yourself.
In the end, I would give yourself a few months to talk and deliberate, but the best way to get going is to start looking in an area and look at 100 deals in that area. You'll soon get a good feel for what cash flows/works and what doesn't. The more properties you underwrite the smarter you'll be in the area.
Happy to talk further via phone if you'd like. Good Luck!