Looking on the internet deeply has found these results:

looking forward to your advice. is the most popular phrase on the web.

looking forward for your advice. 1578,000 results on the web	looking forward to your advice. 1607,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
I don't think I asked for your advice. Mrs Patmore, I wonder if I could ask for your advice. Thanks so much for your advice. The House is obviously grateful for your advice. Mrs Patmore, I wonder if I could ask for your advice. But I do thank you for your advice. I am grateful for your advice. I did not ask for your advice.	Let's just say I listened to your advice. I have a date tonight, thanks to your advice. And looking forward to some quality time together. All those requirements are very difficult to meet, but we will do our best and have listened to your advice. My selfishness, my obstinacy, my stupidity in not listening to your advice. You know he listens to your advice. Madam President, I will try to adhere to your advice. Clearly, if she closed her ears to your advice.

looking forward for your advice.

1578,000 results on the web

looking forward to your advice.

1607,000 results on the web

More popular!

Let's just say I listened to your advice.
I have a date tonight, thanks to your advice.
And looking forward to some quality time together.
All those requirements are very difficult to meet, but we will do our best and have listened to your advice.
My selfishness, my obstinacy, my stupidity in not listening to your advice.
You know he listens to your advice.
Madam President, I will try to adhere to your advice.
Clearly, if she closed her ears to your advice.