But given I've paid for snow removal like once ever, I don't know what I should offer someone who is not a "pro" and already has an idea of their rate. 

These platforms typically have billing policies where you pay a per unit fee per month to the software and you get regular updates and support each month.There are a number of low-cost platforms available that are able to offer you a lower price by passing along some of the costs to your tenants (payment processing fees, applications, tenant screening, etc).

Freddie Mac only offers financing for single properties they do not offer 'Portfolio loans" meaning bundle them all into one loan.

Free option available too.    

As a student without W2 income, you may need to show alternative income sources like savings, freelance work, or a job offer.

If you can show that the numbers work, you can get 100% of the purchase and rehab covered.The key is finding lenders who work with new investors.2.Partnering with Experienced Investors– If you don’t have capital, you can offer your time, effort, and hustle in exchange for a piece of the deal.

After talking to another family member they said they would be willing to go in on the duplex and offered to pay the $40,000 down payment and help with any repairs but they want to be "partners" or "own" a percentage of the duplex.

@Shannon Strickland offered some great advice. 

@Johnny Lynum we did offer them an aggressive cash for keys amount to get them out as soon as possible.

Before diving in to offer advice, I'd like to clarify a few things with you, if I may....You mention that you are going to live in the property while you renovate.