A transaction is not finalized, i.e., either party has the legal ability to retract, until a kinyan, an act of acquisition, is performed. What are the classic forms of kinyan for various items?
What are the kinyanim (acts of acquisition) for real estate?
How is real estate acquired through kinyan chazaka (act of possession)?
I over-ordered certain merchandise, and told my neighbor to come take the extra for free. If later I decide that the extra is useful, can I retract my gift offer?
I bought a bedroom set second-hand, paid the seller cash, and arranged to come by the next day to collect the items. Does either side still have the possibility of backing out?
Are orders placed over the internet by clicking "confirm" binding?
I bought something by check or credit card at a store that does not allow returns. Can I "cancel" the sale by stopping the check or instructing the credit card company to refuse payment?
I sold my house, and agreed to sell also the sofas and dining room set for an additional cash payment when moving. Can I retract on the furniture sale and take the furniture with me instead of payment?
A company distributed complimentary samples of its product. I did not need that product, so I tossed the sample on to my neighbor's porch or walkway. If I later decide that I would like the product, can I take it back before my neighbor comes home?
I am involved in litigation in a Beis Din. I agreed at first to arbitration, but am now convinced that the halacha is on my side. Before the arbitration verdict is given, can I now refuse compromise and demand that the Beis Din rule based on the absolute law?