Buidling an Airbnb competitor is fine as an idea but the 'no fee' angle isn't a big differentiator. Especially when you say in other comments that you will probably charge fees in the future.
Thank you for this. This is not an airbnb competitor only, I want to have Nomad be a place where landlords and tenants can pay/exchange rent without legal contracts, credit checks, etc. Make it easier to stay long term, without all the legal bullshit.
You're going to run into a ton of regulatory issues (that shouldn't dissuade you, but you need to be prepared). Airbnb has run into plenty just offering short stays. Long-term rentals usually have even more strict rental laws.
I'd actually look pivoting to building a long-term rental platform where everything is done online (listings, appointment booking, credit checks, contract signing, maintenance requests, transferring a tenancy, etc.). That seems easier than directly taking on a tech giant.
Long term stays get into complications that you can become a tenant and then fall under tenant protections.
The problem of Airbnb squatters who have gained tenant protections from a sufficiently lengthy stay and then refuse to leave... and needing to go through formal eviction proceedings is a real problem.
