Question

On Friday, November 6, 2009, Leo, a pure-bred Shar-peis was born. Leo Was born in the spring and within a few weeks of being born could already function like a full-grown dog. Though, he was born in a California junkyard; he was very kind and gentle with his brothers and sisters and soon became close with the runt in the family and helped him thrive. From the beginning, Leo knew he was special and knew his purpose in life was to help and bring joy to people. When a visitor arrived at the junkyard, his brothers ran and hid but not Leo. He stayed and liked the palms of every visitor he welcomed One day a scientist for dog allergies found Leo or should I say, Leo found him, and it was love at first sight. The scientist's name was Will, and he much enjoyed dogs and although he is allergic to dogs, Leo didn’t cause him to sneeze, although with the many wrinkles in their fur, they usually tend to make people very allergic. So, will loaded Leo and his family in the car and went to a friends house to give them the dogs. Will kept Leo after realising he felt a deep connection between them.
IS THIS USING CORRECT GRAMMAR PLZ ANSWER

Answer 1

Hi there!
Here is the grammar-error free version of your short-story:
On Friday, November 6, 2009, Leo, a pure-bred Shar-peis was born. Leo was born in the spring and within a few weeks of being born could already function like a full-grown dog. Though he was born in a California junkyard, he was very kind and gentle with his brothers and sisters and soon became close with the runt of the family, and that helped him thrive. From the beginning, Leo knew he was special and knew his purpose in life was to help and bring joy to people. When a visitor arrived at the junkyard, his brothers ran and hid but not Leo. He stayed and liked the palms of every visitor he welcomed One day a scientist for dog allergies found Leo or should I say, Leo found him, and it was love at first sight. The scientist's name was Will, and he much enjoyed dogs and although he is allergic to dogs, Leo didn’t cause him to sneeze, although, with so many wrinkles in their fur, they usually tend to make people very allergic. So, Will loaded Leo and his family in the car and went to a friends house to give them the dogs. Will kept Leo after realizing he felt a deep connection between them. 
Hope this helped and have a great day!