My offer - clever or dumb? please tell me what you think

[Marci Stein]

Totally dilapidated House ( nearly a tear down  )   on 6 acres upstate New York 

in hot area.

currently in foreclosure , couple living there , but need to sell before going to auction next week .
Asking $225 , 

multiple offer situation.

My offer : $75 k and allow them to stay there for one year at no cost.  
are there any pitfalls that I am not seeing with my offer , other than I know I’ll need to evict them in a year?