Text: when numbers of such rumors exist and are persistent, one suspects a "whispering campaign."

Correct capitalization: When numbers of such rumors exist and are persistent, one suspects a "whispering campaign."

Text: bright and spacious apartment of 100 m. in 2 double rooms can accommodate up to 4 people.

Correct capitalization: Bright and spacious apartment of 100 m. In 2 double rooms can accommodate up to 4 people.

Text: typically though, it might take about 4 to 8 weeks before apparent improvements could occur.

Correct capitalization: Typically though, it might take about 4 to 8 weeks before apparent improvements could occur.

Text: i saw her standing there game

Correct capitalization:
I saw her standing there game