@Gordon Gekko
Yep, I agree that maintaining a sufficient cash reserve is critical in the property rental business. The problem is that HollyHobby will exhaust her cash reserves if she buys a new property without cashing out her home equity. That's unduly risky in my opinion.
No, unfortunately bad tenants are not "exceptionally rare". Uncommon, perhaps, but not exceptionally rare.
No such thing as a "zero risk" tenant - people (or their dependants) get sick, lose their jobs, etc. Sure the risk of getting a bad tenant can be mitigated with appropriate vetting but it can never be entirely discounted.
No, the RTB registration fee is not a one off. Yes, it is modest. So is LPT. So are insurance premiums. So are advertising costs. Etc., etc. But add them all up and they become material.
An additional 2% of tax? Well, I'd consider that material.
I notice you are still ignoring the costs of actually managing the property. That's typically 10% of the annual rent if you outsource the job or your own time costs if you decide to self-manage.
An annual net, after-tax return of 5% is not even remotely guaranteed! C'mon -
guaranteed? Very possible certainly. Maybe even probable. But guaranteed?