how can you give your daughter the deed to your home with a mortgage on it ?

You should talk to a local title company or a Real Estate attorney for legal advice, but I expect they will tell you that it is easy to deed the house to your daughter. However, you will still be obligated for the mortgage until it is paid off. Very few mortgages are assumable but that is a possibility you could look into. Otherwise, if you want to get your name off the mortgage as well you may want to look into putting her on the deed and perhaps she can refinance into her own name. Or, it could be treated as a sale and the value of any equity in the property could be treated as a “gift of equity” toward her downpayment under many mortgage programs. Also check with a tax advisor as well about any possible impact the transfer might have on your taxes.