1. cash flow, as we all know, in any real estate business, cash flow is the #1 key to sustain a long-term real estate portfolio, it is also my main and only focus when comes to RE investments, as I currently collect little over 8.5 million in rent per annum, it gives me roughly 2-2.5 million in net operating incomes, normally a mom and pop operation is the most efficient way, but that is at the expense of sweat labor, from experience I found that between 60-80 is almost the perfect size for the small investors, itself can afford and hire an onsite manager and/or onsite maintenance, thus can further enhance your operation while you can be near hands-free.
2. operation efficiency, generally speaking, multi-family dwellings are more efficient than SFH operations, the reason being they are all in a single centralized location and with a similar setup, which can reduce inventory and overhead, in the bank's eye, a polished Pnl and balance sheet, can worth millions.
3. market appreciations, this is at God's will, but if you can push your operations beyond market CAP, it then translates into higher market value.
4. force appreciations, this is referring to value-add, by substantially improving the property, which will translate into higher rent collections, meaning at a higher CAP and market value.