Some people may accept it for a short term, until they can implement a plan to get to cash flow. 

They exist in-part due to qualification requirements that are more stringent than in your country (these requirements were relaxed somewhat in the 1990s/2000s, but have since been re-tightened), in-part because it is difficult to walk away from your obligations, and in-part due to societal norms/expectations.Now, this is a new generation and mix of mortgagors, who are extending themselves further due to higher prices and lower interest rates (though they still must qualify for financing) so it is possible historic performance will offer no continuity.  

But maybe the property management will let you make the criteria more stringent (like higher credit scores, no eviction history possible)I hope this helps, this is a culmination of all my reading and research so far and how I've planned on mitigating my risk.

Any hope of coming back to a place where we'd actually be able to implement something like this is nothing more than fairy dust.

Importantly, DC city and Federal government lockdowns were pretty stringent for 2 years, providing an extra incentive to bounce to the suburbs.

Norfolk has less stringent STR regulations at the moment, but that could change in the future.With you being in Northern VA, have you considered Lake Anna?

Worse yet, a lot of those folks have in some way destroyed their plan through lack of proper administration or by engaging in a prohibited transaction.Find a provider that implements and fully supports the Solo 401(k) plan.  

A year later the town implements new codes to shutdown STR with the min being 30 days. 

The RE world has lots of great theories, but most are not so easy to implement and many lead to really bad investment plays.

Now that regulations have been implemented that is not as true.