Hi shwewin and thanks for your question.
As I am not a loan broker, I cannot speak for the mortgage industry, but can say that getting a loan from any bank is still quite a difficult thing to do. In the past, there were "no doc" and "stated income" loans, but today, almost every bank wil require documented income in order to make a loan. One of the ways to document income is through the filing of taxes.
You can certainly speak to loan officers and mortgage brokers, and, indeed, you may already have done this, but I suspect that the offer of a loan may stop short with the lack of income documentation. If your daughter has no income, which means no taxes, then despite having a sizable downpayment, there is no way for her to prove that she can actually pay for the loan. If this is the case, you may want to be on the loan with your daughter to get her started.
Eih way, talk with a qualified broker to assist you!