@Jameson Sullivan After thinking the $100/door scenario through, I think I would run even if it was only a little over $100/door as I do not have anywhere near the scale to get any sort of efficiencies myself. In my market, at $100/door and rents at or above $1,000/door it only leads to a 10% variance in vacancy or rents becoming a break even situation which I think is a possibly situation in a recession.
In my mind, the $100/door rule, might make more sense to be looked at as a 20% or 25% of gross income rule as far as the amount of cash flow needed to go back to the investor after debt service and cap ex. This would seem like a safer number and using a percentage would take into consideration the differences in the rental market of geographic locations.
As it is now, $100/door in cash flow is completely different in downtown Seattle as it would be in Aberdeen, WA, or other cheaper areas. If we look at it as a 20% rule instead of $100/door, it would add a lot more cushion for an investor to weather a storm or handle the unexpected.
It could play out as follows:
High demand USA rent $1,500/mo
$100/door cushion=6.6% of rents go back as cash flow-not much cushion against changes in vacancy or rents.
$300/door=20% cushion. This is 3X the cushion offered to protect in a recession as compared with $100/door.
Standard area USA rent $1,000/mo
$100/door cushion= 10% of rents go back as cash flow. As looked at previously in this thread, it only leads to $100/mo in stressed rents to get to break even or 10% more rents than anticipated.
$200/door=20% cushion. This is double the protection and would allow the investor to withstand up to 20% more vacancy than initially planned or up to $200/mo in rental. It would also allow the investor to withstand both to a lesser extent (10% each) as well.
Lower cost USA rent $650/mo
$100/door cushion= 15.3% of rents going back as cash flow.
$130/door cushion= 20% of rents going back as cash flow. This is not as big of a difference with $100/door so it is possible $100/door could work assuming there is no major employer that drives an area and could lead to a major issue. It seems reasonable to think that a lower cost/unit might have less fluctuation in price than a higher cost area but it might be about the same as a percentage.
Some might look at me as too conservative related to this, but the reality is that the investor needs deep pockets or needs excess cash flow to protect against changes in the economic cycle if they are looking at investing in a safe area with only $100/door in cash flow. There is more protection in $100/door if investing in cheaper areas, but odds are that all of us are not investing in these areas and $100/door might not offer much protection as a "rule of thumb" when looking at average rents across the US.
I hope this thread continues to get traction and that some longer term investors can chime in with how their assets performed in the last decline. In the $1,000/mo scenario, I don't think cash flow coming back at $100/mo (10%) is enough to weather a storm, but I don't have the experience to suggest that it will have an impact of >10% of vacancy or 10% in rents either.
If any of the current posters were investing in rentals since the early 2000s, I would be curious to see how your portfolio fared.