825k a year investment- what should I look out for?

[Katie Johnson]

Here are the numbers 44 Unit multi-family for sale $12,618,052 Gross Rent Roll - $ 918,000 Total Expenses - $92,950 Net Operating Income - $ 825,050 I think this is a great investment, on a large scale. However, I would like to see what I can’t see. Would some of you seasoned investors chime in to tell me what are some of the important things to look out for before making a big purchase like this? Thank you for your time.