The seasonal contracts I bought were month to month in every way that mattered
Closed on a 54 site park last spring, 38 seasonal sites and 16 nightly. The seller's package showed 38 signed seasonal agreements at 3,200 for the season, which is roughly 122k of what looked like committed revenue before I sold a single night.
I read all 38. That's the part I'm supposed to be good at. What I read and mispriced is different from what I missed.
Every agreement had a termination clause letting the guest cancel with 30 days notice and receive a pro rata refund of unused season. There was no forfeiture of deposit, no liquidated damages, nothing. So a signed seasonal agreement in that park was a month to month site rental with a nice cover page. I noted it in diligence, wrote it in my memo, and then underwrote 90% seasonal retention anyway because the seller's three prior years showed retention in the high eighties.
What I didn't price: the prior owner was the reason those people stayed. He ran a Friday potluck, he fixed their steps, he knew their grandkids. I raised seasonals from 3,200 to 3,650, which is defensible against the market, and I did it in a letter. Nineteen of 38 gave notice inside 60 days. Pro rata refunds out the door were about 31k in cash I had budgeted as revenue.
I refilled 11 of the 19 by August at the new rate, and nightly held up fine because the location is genuinely good. Full year landed at roughly 74% of my underwritten revenue. Debt service was covered because I'd bought at a low enough basis, barely.
What I'd do differently, plainly: treat any seasonal agreement with a 30 day out as month to month revenue in the model, no matter what the historical retention says, and don't touch rate in year one at a park where the relationship was the product. I'd have taken a season of flat rates and a lot of handshakes over 31k of refunds.