Please help me correct the errors in the text
My family.

In our family, four people: mother, father, my elder brother and I.
My name is Pavel. I'm twenty-three years. I am a student of the University Law. My elder brother, Alexander, is a manager. He is twenty seven years. He loves to travel by plane.
My father is a painter. Him fifty years. He paints a picture.
My mother was a homemaker. Her fifty years. She loves to cook. We are always willing to help her at home. Our family lives in Vladivostok. We have a nice one bedroom apartment. We are very pleased with our apartment. Our family is very friendly.

Question

Please help me correct the errors in the text
                                                 My family. 

In our family, four people: mother, father, my elder brother and I. 
My name is Pavel. I'm twenty-three years. I am a student of the University Law. My elder brother, Alexander, is a manager. He is twenty seven years. He loves to travel by plane. 
My father is a painter. Him fifty years. He paints a picture. 
My mother was a homemaker. Her fifty years. She loves to cook. We are always willing to help her at home. Our family lives in Vladivostok. We have a nice one bedroom apartment. We are very pleased with our apartment. Our family is very friendly.

Answer

"I am a student of the University Law"

Unless your university is named "Law", then "I am a law student." or "I study law at University." or "I'm studying to be a lawyer." are all more appropriate.

Answer

In our family,[There are ]four people: MY mother, MY father, my elder brother and I.
My name is Pavel. I'm twenty-three years OLD. I am a student of University Law. My elder brother, Alexander, is a manager. He is twenty seven years OLD. He loves to travel by plane.
My father is a painter. [He is] fifty years. He paints picture[s].
My mother IS a homemaker. [She is] fifty years OLD. She loves to cook. We are always willing to help her at home. Our family lives in Vladivostok. We have a nice one bedroom apartment. We are very pleased with our apartment. Our family is very friendly.