I am doing capitalization and I have to write a couple of different types. Are these good sentences for different capitalization usage.

Emily's address is 14 Orient Lane, Baltimore, MD.
Jennifer dreamed of a wedding in Central Park.

Yes. Those are both correct.

Yes, both of these sentences demonstrate correct usage of capitalization.

In the first sentence, "Emily's" is capitalized because it is a proper noun (referring to a specific person) and the beginning of a sentence. "Orient Lane" and "Baltimore" are also capitalized since they are names of specific locations. Lastly, "MD" is capitalized as it represents the abbreviation for the state of Maryland.

In the second sentence, "Jennifer" is capitalized as it is a proper noun and begins the sentence. "Central Park" is also capitalized since it is a specific location.

When it comes to capitalization, it is important to remember to capitalize proper nouns (names of people, places, organizations, etc.) and the first letter of each sentence.