I own a mobile home in a park, on leased land. The owner passed away. His ex wife.. not on deed.. and son.. who is.. have taken over. All dealings have been with his ex wife. I have lived here almost 7 years. I have a contract of $1,000 a year until jan. 1st , 2020. I was informed in dec. 2018, that the lot lease was going to $2,400 a year. Of course, they know they have to honor my contract til 2020. But, i can not afford $2,400 payable in 1 payment. I am on disability. Many home owners here, have already moved, for the same reason, cant afford it. They don't want to buy my trailer, and it is a nice one. I am having trouble trying to sell it, it is hard selling that $2,400 lease. Do they think i am supposed to just surrender my home to them. What rights do i have. It cant be moved, due to a built up roof, and a room addition. What can i do.

You are pretty much stuck. The contract will most likely be enforceable. However, if you can save $200 per month for this year, you are OK. Don't know where you are located but I looked up lot rentals in some areas of FL. Nothing less than $400, so $200 per month sounds pretty low to me.

It can be moved, but all the additions would have to be taken off.

$2400 a year is very low, the cheapest I know here is about 350 a month (monthly payments) for about $4200 a year.

But yes, if you do not pay, and then do not move the home, they can sue for the money owed for rent and late payments, and put a lien on the home, Then if you still don't pay, they can have it sold (which often no one bids and they end up owning it.

That sadly is just how it works if you don't own the land. You can try to work out payments with them, And as noted, start saving money this year to pay for next year.

But as noted, payments of 300 to 400 is not out of line at all for "lot rent"

Also of course, you can try to sell the home now, to someone else