I want to tell you about the co-host from hell.
We found him on Airbnb's own co-host marketplace. Seemed fine. Managed the Bathurst property for a while. Then the relationship soured — and what followed was months of paralegal fees, fake AI-generated documents, and the slow realisation that the Airbnb platform offers you almost zero protection when things go wrong.
How it started
The co-host arrangement made sense at the time. We were scaling, managing multiple properties, and the Bathurst unit needed someone local to handle turnovers and guest communication. Airbnb has a co-host marketplace. We used it. That was mistake number one.
The arrangement works fine until it doesn't. And when it doesn't, you discover that Airbnb's terms don't clearly define who owns what in a co-host relationship. The platform that connected you takes its 3% cut and disappears when the dispute starts.
The slow-motion nightmare
He wouldn't leave. That's the short version. He claimed he had purchased items for the property with his own money — furniture, supplies, equipment — and therefore had some claim to remain. Whether those claims were true or fabricated, we had to treat them seriously. That meant paralegals, documentation, formal notices.
The costs: thousands of dollars in paralegal fees. Months of back-and-forth. Stress that no rental income justifies.
Then it escalated. He started using AI. Generating documents. Fake correspondence. Responses to our notices that looked professional and legally formatted but were entirely fabricated. If you haven't encountered AI-assisted bad actors yet in property management, you will. This is coming for everyone.
The platform that connected you takes its cut and disappears when the dispute starts. There is no Airbnb arbitration for co-host relationships gone wrong. You're on your own.
Is the juice worth the squeeze in 2026?
Let's talk numbers, because that's what this comes down to.
After Toronto's 2021 STR ban on non-principal residences, the furnished rental market got flooded. Supply went up, prices went down. Then Airbnb raised its service fees. Then cleaning costs went up. Then the mid-term rental platforms (Furnished Finder, etc.) started competing for the same tenants.
The spread between what you net on a well-run short-term rental versus a long-term tenant has compressed to the point where, in many Toronto markets, it's nearly zero. And that's before you factor in:
- Co-host fees (typically 10–20% of revenue)
- Cleaning costs per turnover ($80–$150 per clean)
- Airbnb's guest and host service fees
- Furnishing replacement and maintenance
- Vacancy between bookings
- The cost of disputes like the one I described above
A long-term tenant paying $2,300/month with you covering nothing is starting to look very good compared to an STR grossing $3,500/month with $1,800 in operating costs, a co-host taking 15%, and a paralegal bill waiting to happen.
Who is actually winning on Airbnb right now?
The people succeeding are running it like a hospitality business. Systems for everything. Professional photography. Dynamic pricing tools. Their own cleaning crews on contract — not random Airbnb cleaners. No co-hosts from the platform marketplace. Direct relationships with everyone involved.
The people losing are the ones who thought STR was passive income. It never was. It's a business. And in 2026, with compressed margins and AI-powered bad actors, it's a harder business than ever.
The AI harassment problem nobody is talking about
This is the part I want to flag because I haven't seen it written about seriously anywhere. Bad actors in property disputes — tenants, co-hosts, contractors — now have access to the same AI tools we do. They can generate convincing fake documents. Fake correspondence chains. Fake receipts. Fake legal notices.
It doesn't matter that these documents are fabricated. What matters is that you now have to respond to them as if they might be real, which costs time and money. The asymmetry is brutal: it takes ten minutes to generate a fake document with AI, and three hours of paralegal time to properly respond to it.
I don't have a clean solution to this. What I do have is a warning: if you're managing properties with third parties — co-hosts, property managers, contractors — get everything in writing, keep meticulous records, and assume that any dispute could involve AI-generated documents. Because in our case, it did.
The bottom line
The Bathurst situation cost us thousands in paralegal fees and months of stress. It also clarified something: the era of treating Airbnb as a reliable passive income platform is over, at least in Toronto. The margins are too thin, the risks are too real, and the platform offers too little protection when things go sideways.
Long-term tenants aren't glamorous. But a good long-term tenant paying market rent, in a properly structured lease, with a clear legal framework behind you — that's a business. The co-host arrangement we had was a liability dressed up as a solution.
Are you still running STR in Toronto or another major market? What's your current math looking like? I'd be curious to hear if others are seeing the same margin compression — or if you've found a model that still works.