The biggest trap I see first-time multi-unit investors fall into is treating the property like a large house rather than a small business. When you move from residential to multi-unit, your financing and your risk profile change completely. Many investors underestimate the "vacancy drag"—the reality that when one unit sits empty, it eats into the margins of the others much faster than you’d expect. They often fail to set aside a dedicated capital expenditure reserve for big-ticket items like shared roof repairs or HVAC systems that service multiple units, which can lead to a massive cash flow crunch in the first year. Another pitfall is miscalculating the "true" net operating income. It's easy to look at a rent roll and get excited, but first-timers often forget to factor in professional management fees, higher insurance premiums for commercial-style policies, and the inevitable rise in utility costs if the building isn't sub-metered. If you aren't scrutinizing the trailing twelve months of actual expenses during your due diligence, you’re essentially flying blind. From a mortgage perspective, remember that lenders will look at the property’s ability to service its own debt much more than your personal income, so the math has to be airtight. I’d love to take a look at the specific deal you're considering to help you stress-test those numbers. Feel free to reach out if you want to dive deeper into the financing options available for multi-unit acquisitions.