Can a fiancée who has agreed to a religious suitor withdraw from the engagement due to his lack of sufficient funds to cover the dowry, marriage expenses, and housing, especially after a month has passed since the engagement?

We advise you to fulfill your promise to this suitor. Your father's effort to find a suitable suitor with good qualities is correct, as the Prophet, peace and blessings be upon him, said: "If someone whose religion and character you are pleased with proposes to you, then marry him; if you do not do so, there will be tribulation on earth and widespread corruption." It is not appropriate to reject a suitor due to his financial hardship, for marriage is a means of richness, as Allah the Almighty says: "And marry the unmarried among you and the righteous among your male slaves and female slaves. If they should be poor, Allah will enrich them from His bounty, and Allah is all-Encompassing and Knowing." Also, fulfilling a promise is religiously required, and breaking it is blameworthy, and the commitment to marriage is among the most important promises to fulfill. You can avoid concerns related to housing by stipulating independent housing away from him and his family, for it is your right that he provides you with suitable housing.