Land for Airstream (west marin)

Hello, I am a single mom from Fairfax who is trying to heal from a toxic exposure and resulting multiple chemical/mold sensitivities.
I am looking for someone who would be willing to allow me and my young child to rent a space on their land for a trailer while I recover.
We have lived in a dozen different homes trying to find a place that doesn’t make me ill, including the home we own in Fairfax (which, unfortunately, does not have a yard).
The hope is that a metal trailer will give me a chance to heal.
We are mindful, caring, and conscientious people who would respect your privacy and land.
I can provide wonderful references.
I am grateful for your time and consideration.