I've seen this on the one of real estate forum:

hello, this is my first time to sell a house and it's been on the market for 1 month. a townhome in our complex was sold in 2 weeks (same size & condition as ours).

anyway, we got an awesome RE agent, he was referred to us by our friends and he was very successful with his transactions with them (like getting their homes sold for more than asking price, good strategy). take note though our home is located in an area which is not his specialty. but we hired him anyway because we know he is very hardworking and has good strategy.

but our home has been on the market for a month now and i am wondering, is it ethical to get another real estate agent to work together with the one we already hired? so in essence there will be 2 of them working together to sell our house.

if it is ethical, how do we go about it? i hope you can give me some insight.
What do you think about it?