Please, correct these sentences)

1. Einstein was a genius.
2. Ann and Tom have divided their property after their divorce.  [1]
3. Tom has ability to be uplifting, so Ann is in a good mood after her last disaster.  [2]
4. Tom's ancestor was well-off.  He owned the major manufacturer in their city.
5. Ann perceives disabled people like ordinary, normal people.
6. The [3] dog has fuzzy fur.  
7. Tom portrayed the place, which was inhabited by dinosaurs.
8. Ann has eaten a huge quantity of cake on account of her gluttony. 
9. The scale of the schema is very big.
10. The nobleman has hired a new guard to protect him.

[1]  Don't use the present perfect tense if the sentence refers to a specific time when the action was completed.  Even though "after their divorce" could be a long period of time, it is still considered to be "specific," because it is separate and apart from the time before their divorce.   // You could also say, "Ann and Tom divided up their property....."   The "up" serves as an intensifier, and is more colloquial.

[2]  Without a context, I'm not sure, but if you're mentally translating катастрофа, the English translation might be "accident."  For example, an automobile accident.  (автомобильная катастрофа)

[3]  Not all dogs have "fuzzy fur."  So I conclude you're talking about a specific dog.