@Daniel2794 I notice the listings you host (or co-host) look great, but the fact that they are relatively new makes them particularly likely targets for scams, fraud, and potential squatters - and there's very little Airbnb can or will do to protect you from a financial or legal disaster.
First and foremost, a stay of more than a few months is not a "guest." It's effectively a tenant, and you're the landlord. Airbnb is designed for short-term lets, and as a listing site it emphatically does not offer any services that are useful to landlords. It doesn't furnish you with the relevant details for background/credit checks, it doesn't hold a deposit (say, first/last month's rent etc) on the guest's account, its terms do not consitute a strong lease agreement, it does not give the host any autonomy in the event of claims for damage or losses - in other words, its usefulness declines dramatically as the length of stay increases. And yet you and the tenant would still be paying substantial fees to them for basically nothing. Airbnb collects rent only on a monthly basis in long-term bookings, and if they're unable to collect payment from the guest at the beginning of a month there's nothing they can do but cancel it and leave you empty-handed.
If you are willing to consider this guest as a candidate for a long tenancy, but can't exchange contacts without violating Airbnb rules, you can offer the guest an opportunity to reserve the property for just one night. After that, you are free to obtain the guest's identity details, any records that are applicable in Vietnam, conduct a tour of the property, and present a legally binding rental agreement independent of Airbnb and its fees, if you so choose. But if you are not locally experienced as a landlord, and aren't well-versed in your legal rights and responsibilities, the only reasonable thing to do is decline the request.
