Karen is the sole owner of a wildly successful small business. However, Karen's financial advisor has told her that her estate would be unable to meet its cash requirements if she were to die today, and the business would have to be sold. Karen, who is a widow with not children, is only 50 and plans to continue running the business for many years. However, she does want to take some action to prevent the possible sale of the business should she die, and prevent future appreciation of the business from inclusion in her gross estate. Karen is very close to one of her nieces, who has shown an interest in and aptitude for the business.

Which one of the following actions would be most appropriate to help meet the liquidity needs of Karen's estate and would be consistent with her objectives and situation?