In need of a room in exchanged for assistance (Portland)

I'm experienced in caregiving and being a personal assistant.
I have a background in maintenance and security.
I have a driver's license and don't smoke or do drugs.
I'm very responsible and can help around the house in exchange for rent.
I am seeking a private bedroom or granny unit where I can help in exchange for rent.
I do have a full time job and I do have a truck.
Greater Portland area with a SW Portland area preference.