I need to transfer my shares in coop to my daughter. what do i need to do?

If you simply owned title to a house or other piece of real property, you could transfer your ownership interest by executing and filing a deed. Here, however, the matter is complicated by the rules set forth in your coop's bylaws and in your proprietary lease. Typically, the bylaws and proprietary lease have detailed rules prohibiting the assignment or transfer of shares or rights under the proprietary lease to others, even family members, without the consent of the coop board (which in turn often requires a new application process). I strongly recommend consulting with a real estate attorney who can help you come up with a good strategy for making this transfer effective and enforceable, while going through as little hassle and expense as possible. It might be easier, for instance, to sublease your apartment to your daughter for now until your death, if the coop's bylaws and proprietary lease provide for an easier sublease process (though some do not). Regardless of the solution ultimately adopted, however, the process will go much more smoothly if you have counsel now to help you through it. The alternative of doing it by yourself could easily lead to litigation, which will be much more expensive to resolve than if you had simply paid an attorney to help you at this stage. Best of luck.

If this is a corp, you should endorse the stock power on the back of your stock certificate and list her on it as the transferee. Then she should present it to the Secretary of the Co-op with a request to reissue the shares in her name. The Co-op’s Bylaws may have some special notice requirements or other restrictions on transfer that you will need to comply with; you should ask the Secretary about that. If it is not a corp, you need to consult a lawyer about how to transfer.

You need to consult with a real estate lawyer in New York City to help you with the paperwork & dealing with the co-op board.