Final answer:
An installment contract (land contract) for the sale of an estate does not give the buyer the right to enter into contracts with other parties using the property until all of the payments are made and they officially own the property.
Step-by-step explanation:
In an installment contract (land contract) for the sale of an estate, the buyer does not receive the ownership of the property until all of the payments are made. This means that the buyer does not have the right to enter into contracts with other parties using the property.
For example, if the buyer wants to lease the property to someone else, they would not be able to do so until they complete all of the installment payments and officially own the property.