Is it permissible to marry a Muslim girl, none of whose family members pray, and to temporarily conceal the marriage from them?

For a woman's marriage to be valid, her guardian (wali) must عقد it, based on the Prophet's (PBUH) saying: "There is no marriage without a guardian," and his saying: "Any woman who marries without the permission of her guardian, her marriage is invalid." The woman's guardians, in order, are: her father, then her paternal grandfather, then her son, then her grandson (if she has children), then her full brother, then her half-brother (from the father's side), then their sons, then paternal uncles and their sons, then paternal uncles of the father, then the ruler. If the girl's guardians do not pray, their guardianship is not valid. In such a case, the Muslim judge marries her if one is available; otherwise, the head of the Islamic center or similar authority does so, in the presence of two just Muslim witnesses. Concealing the marriage from the girl's family may lead to many harms, especially with the difference between the two countries and your lack of employment. Therefore, it is advisable to postpone the marriage until you find a job and propose to the girl's family.