@Collin Ordonez, welcome to the forums. I'll start with the price and NOI. I recommend getting a copy of the financials (RR, T12, including lease terms for the retail space) and calculating the NOI yourself. You will be surprised how often you have missing expenses, future rental income instead of current, and simple poor math.
On the financing side, this would be a commercial loan. I am going to guess that you will need to bring on a partner with mixed-use experience. With professional management, you may get around that hurdle.
You must also have a net worth equal to or greater than the loan amount and meet the lender's liquidity requirements. So again, probably will need a partner.
When it comes to a downpayment, maybe 25% will be enough. The deals I am underwriting now are at 60% LTV. If the property is worth $1.45M, the loan amount would be $870K. On top of the down payment, there will be all the closing costs, attorney fees, inspections, environmental, and probably a few things I am forgetting.
Reach out to the listing broker and see what information they have. Ask them questions about the deal. Try and run the numbers yourself and when you get stuck, come back and ask more questions.
Depending on your market, someone on the forums would probably partner on the deal if the numbers are good.
Good luck, and feel free to shoot me a DM.