First of all, you must obtain a diploma as a live-in nanny (or have some working experience in related fields, such as on-the-job nurses).

Followed by IELTS G (immigrant IELTS) listening, speaking, reading and writing 5.5 points.

Third, find a suitable employer and apply for LMIA.

Finally, apply for a nanny work visa and apply for permanent resident status after working in Canada for two years.

The handling fee for the whole process is generally in the hundreds of thousands, and there is no need to pay in one lump sum. Normal working families can afford it completely. Remember, you must consult with a formal and qualified institution, and don't be greedy for temporary cheapness, resulting in irreparable consequences.