Also, you're familiar with whatever laws govern that TLD already, and your local registrars will be by most familiar with them when any issues come up and likely have the quickest turnaround for solving issues. I'd probably avoid using one of the huge registrars (because big companies invariably have poor and slow support that's unable to account for exceptional cases), and of course avoid resellers.

This all seems too vague. Is there no registrar making more specifc availability and stability guarantees backed by law or at least believable rationale? Or is there some technical solution that bypasses the entire registrar system altogether?