I'm having trouble deciding if "I estimate to be $10,000.00" is a non-restrictive or restrictive phrase, and therefore the need for a comma surrounding this phrase.
In addition, is a comma required after "unable to do so"?
"The problem lies in generating the necessary capital to make a down payment, which I estimate to be $10,000.00, and I worry that if I am unable to do so, my plan to pursue the opportunity presented before me may be in jeopardy."
Thank you!