EVSE and Mobile Home

I live in a mobile home park with an older home built with a 50 amp 240V service to the home. Power for the EVSE will be limited. If I use only the 3.3 kw charger at night, I will be using only 15 amps and that should work out. My dryer, range, heater are all gas. Lighting is with CF lamps and the most current I take is during the day is with a microwave or vacuum. I'm currently measuring what my real-time current draw is to make my own conclusion of the usage. My service box has room for the 40 amp breaker and a cable run to the car port would be less than 20 feet. With only having a 50 amp service, could an assessment reject the install on that fact alone?

Quite possibly you should get the EVSE installed on a 20-amp breaker (instead of 40-amp), and have the EVSE's Control Pilot set to "offer" only 15 (or 16) amps to the car.

Do you have the ability to upgrade your service, or are you strictly limited to the 50A service?

The 50 amp service was put in by the mobile home park and can't be upgraded.

Does L1 charging (slow, 50 miles in about 10 hours) work for your driving needs?

If so, you do not need to install anything.