having challenges finding a part time manager

I own a 60 unit park out of state and I am having a hard time finding a part time manager who can handle the task, hopefully someone here can help me out.

I have an onsite office and have always preferred someone to live in the park to run the property for obvious reasons. There is no set office hours, the only requirement is just do the basic duties of collecting rents, maintaining the property and renting out spaces. I have gone through countless managers for many reasons, some just dont do the basic duties or get sloppy after a few months. I would like to find someone who stay at this job for the long term.

What is a good pay for a part time manager?

Should I try to find someone offsite?

Any suggestions would be appreciated.