I only purchase direct from owner and no assignments.

The lease agreement should have noted when the tenant pays rent.

Have you always invested in owning the parks, or have you purchased some individual mobile homes in parks you haven't owned also? 

The agreement is that your tenant will pay for any damages they caused.

@Venka Pulla It’s frustrating when a property manager isn’t meeting expectations, but transitioning to a new property manager is typically straightforward if you follow a few steps:Review the Management Agreement: Carefully read your current Property Management Agreement (PMA) to understand the termination process, including any required notice period.

If you are not out by the deadline or the property is damaged, this agreement will be void, and the Landlord will pursue legal means to evict and collect all unpaid rents, plus any other charges owed."

To vet guests, you can use a pre-booking form, ask about their plans, and require an ID and signed agreement.

Sure that's the same as any financed purchase that you just sell.

I got a reasonable discount on the purchase price, and it has made me a good amount of money over the years.

We have a PMA, but it doesn't  seem to address these things in a way that is specific enough to where they're violating the agreement.