Stop using “rules” if you don’t understand the logic. E.g. 1%, $$ per door, etc.

Putting this out there for the newer folks or those that are just lazy, but these rules are actually just guidelines for quickly analyzing whether a deal deserves more attention. DO NOT USE THEM TO MAKE DECISIONS! Smart investors are not buying a property just because it meets the 1% rule, they're using it (or 2%, 5%, .25%, whatever) to help thin down the list of properties quickly so they can start analyzing what's left more carefully. In the same vein, there's no perfect cash-on-cash(CoC), dollars per door, or any other easy metric that will truly tell you to buy a property.

If you cannot decide whether a property is a good investment for YOU, then you need to spend more time educating yourself on the numbers behind real estate investment. A property may have crap rents but a huge potential for forced appreciation, but that may be worthless if you don't know anything about construction and have access to a lot of cash. It may generate a ton of $$ per door, but if the initial investment is huge, then it could still be a poor ROI. Maybe it's a perfect 1% property, but has $200k in deferred maintenance so it's really a -1% property after repairs.

Markets vary and the type of investment you will be most successful at will vary, so don't use rules to make large financial choices. If you don't have a spreadsheet(or similar) of a property and understand where the numbers come from, then you should probably wait until you do.