Can you contact the person in charge of the property to clean up in the community?

I don't think it's appropriate for you to do so. You can go to a regular nanny company for training, get the corresponding qualifications, and then get a job. This is a formal channel.

The property management company knows nothing about you, so it can't recommend you. In case something goes wrong, the property is afraid to take responsibility. Or you can go to the 58 city network to see the information nearby.