All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His Slave and Messenger.
Attending lectures in churches for the sake of obtaining financial or in-kind assistance is impermissible because this is a bribe to call Muslims to Christianity. This is clear from your words. Without these lectures, she is not allowed to take the assistance. There is no doubt that going to churches, sitting with the Christians and listening to priests will eliminate the creed of loyalty for Muslims and dissociation from the disbelievers, love and hate for the sake of Allaah The Almighty especially that these lectures are about upbringing. There is no doubt that upbringing for those people is different from upbringing for Muslims.
You should advise this woman not to go to this church and explain to her that she is jeopardizing her religion to obtain a few pennies and that she should abstain from accepting such assistance as long as she does not need it. If she is needy, she should ask the Muslims first. The Messenger of Allaah, sallallaahu ‘alayhi wa sallam, said: "Whoever abstains from begging, Allaah The Almighty Will Suffice him." [Al-Bukhari] He, sallallaahu ‘alayhi wa sallam, also said: “If a slave resorts to begging, Allaah The Almighty Paves his way to poverty”
Allaah Knows best.