Have you spoken to any AirBNB hosts that your $2500 month fee would be less than would they currently pay AirBNB, and if so, what did they say? How do you plan to deal with hosts that are unable to justify $2500 monthly subscription cost?
Some people (like myself) can afford a 2,500 rent but can't seem to be approved for a 2,500 mortgage, due to credit and this "Feature" of Nomad Pass is for people in my shoes.
I would go that very carefully with a lawyer. The contracts and credit checks are a way for the landlord to mitigate risks. You need to identify where the risks are and who is assuming those risks if you not doing contracts or credit checks.