Do I owe 4 months' rent if I terminate my lease without 60 days' notice?

Two months compensation, not four months.

Dear Questioner,

Based on the clause you've provided, if you fail to give the required 60-day written notice before vacating the property, you would be obligated to pay an indemnity equivalent to two months' rent.

If you can't provide the 60-day notice, the penalty will be the same according to the above-mentioned clause.

If you need further clarification, you may contact me.