Motorhome Parking for Summer 2024 (Portland Suburbs)

My wife and I own a 36 ft.
class A motorhome that we live in full-time.
We are "snowbirds" and live in Maine during the summer and Florida in the winter.
We are looking for a piece of land that we could rent during the summer months (May thru middle of Oct.
) to park our motorhome and live in during that time frame.
We would need to have access to sewer hook-up and power.
I am willing to pay for an electrician to install a power source, but we would need to have access to sewer hook-up.
Thank you