10 days is a lot and could be a problem.

Payment not guaranteed is a problem.

About the 10 days deadline,

first of all, a shorter deadline will get the best designers working for you as soon as possible, a long deadline would just make them postpone again and again until they forget about it.

Second, designs will come in a lot quicker when the deadline is closing in.

And third, a week from now, we would hardly find your contest, it would be on the 10th page or something like that, that can't be good.

It's your decision but i assume you want the job done as soon and as good as possible.

Do you have a website?

Thanks for the advice,
I will shorter the deadline

The web site site is in process, you can check http://test.jlastudio.com/

and we might need to go through
Design crowd again for the branding of the firm

Some feedbacks would be nice

Are you willing to guarantee the project?

FYI un-guaranteed contests turn away a lot of good designers

I will guarantee the contest but later

Good Afternoon,

Regarding the invitation to participate on this project, i ask of you to consider giving some feedback relating the submitted logos, feel free to communicate any changes you might require.

Kind Regards,
Francisco Augusto

Sorry for late feedbacks...