Monthly or annual REVENUE - gives you a feel for performance. NOT their NOI, as their NOl takes into account their expenses and your expenses will be different than theirs since you won't run it the same way they do. And sellers often/nearly always skimp on their expenses to make the business look more profitable than it really is. Occupancy - both physical and economic (if they know it) - tells you about the local demand for storage Any recent repairs or deferred maintenance? helps you account for any large issues that may have happened of that you need to account for in your underwriting to price the deal right Reason for selling - this one is gold. Often tells you how flexible they might be. How they manage it - software (which one?), on-site manager, mom & pop system like pen and paper in a binder or 3x5 cards in a drawer (yes I've spoken with owners who do this), etc. Are they open to seller financing (aka taking payments over time / holding a note) - this flexibility can help you achieve a higher purchase price or down payment... etc, helps you structure the deal to meet their "needs and greeds" with selling the biz. Do they own it free and clear? If they want to sell it for $1M and they have a loan for $600k, they'll only be able to seller finance $400k, so you can structure your offers taking into account that they cant seller finance more than the equity they have in the deal. And before you end the call, ask if you can email them your contact info and a little about you. It helps them see you as more human, and it gives you their email so now you can follow up automatically even while you sleep using Schedule Send in gmail (or other email service)