My character is a Hlaalu Thief who went to the mansion and killed all the zombies. I took the statue to Brara Morvayn and after to Lloros Sarano to destroy it. But the priest don′t have any dialogue to do this. Is there any legit way or a mod to end this quest? Can someone give me console commands to add this topic to Lloros Sarano dialogue? Thanks.

http://www.uesp.net/wiki/Main_Page is your friend, here:

http://www.uesp.net/wiki/Morrowind:Mission_to_Morvayn_Manor

Thanks, I saw these link before post here.

But that way the quest closes but the statue remain in the world and I don′t receive the reward.
So, maybe are there any commands to enable the appropriated topic with Lloros Sarano?

Only way would be using the consolle to make yourself a member of House Redoran (can't remember how you do that right now, you'll have to look around a bit).

Or use something like Freelancer mod, that allows you to complete a number of quests without being a member of the relevant faction.

I′ll look. Thank you.