Land Contract Dispute

My name is Phillip Barber and I entered into a land contract with landlord. The problem i am having is that we were advised to hold off on signing because property may still be involved in court proceeding by former land contract owner. When we were notified that this issue was resolved we went to sign again. At this point we were told that the landlord had to look over some revisions, so we waited and are still waiting. he confirmed changes but we have not been contacted to sign revised version. In the meantime he apparently has decided to sell the property to another party and evicting us. We have paid on property for 10 months and every receipt has payment toward land contract on it. we do have a copy of contract with all names on it but its before revisions (unsigned).
We will not only be losing our business, but our residents is an apartment within building(property). Please Help!!

Phillip