Next, contact your park manager and ask what kind of application is going to be requried for a new owner. Get a copy of it.
Then, put an ad in your local newspaper and hand out flyers in your park, listing the monthly payments for the mobile home and lot rent. Make appointments with interested buyers to see your home promptly.
Ask for a deposit of at least $500 and have a sales contract ready to fill out. Good luck.
I am surprised that nobody else within your community has never sold or purchased before. I think if you speak with your neighbors they might be able to lead you in the correct direction.
As to having someone take over payments. At one time you signed a contract with a lender and your community. All of your answers will be within those contracts. I do not suggest simply walking away and not making any payments.
I will see if I can find a website with information later tonight.