., but as someone with zero experience, would the single family lot be my best bet?

I bet they will market/sell your phone number.

If you don't want to pay an attorney to draft a "personal property" contract (assuming the MH is NOT attached to land), then a simple version can be found online. 

Wild Apricot: fantastic member directory, templated emails, finance tracking, and website, but appears both the online payments portal and mobile apps require the $40/mo+ subscription.

Go online for their location and dates.

Pre-licensing class $300.00 (63hours of class time required) $83.00 State exam, $125.00 post license class (45 hours online), $1187.00 realtor organization fee.

At this stage of your life/career, your best bet is to maximize your savings into liquid assets (ETFs should be you go to option - Vanguard, Fidelity or Blackrock).

You'll have access to MLS to be able to look for deals, keep the commission, list your own deals, referrals commission, document database, you'd have the online tools to submit offers, its a good networking opportunity because you'll be further involved in the real estate community and you'd get more of an educational opportunity because you have to study in order to pass the state exam.The realtor is involved throughout the process.I'm new so I mean.. what the heck do I know?

If they have money sitting in the bank it won't be earning anywhere near close to that, and betting on you as opposed to throwing that money in the stock market would likely prove to be less risky.

I made a bet and predicted SFR median at 294k, and 17.6% year over year.