My advise would be go with your kids & leave DH to it.
The kid sounds like he has some severe behavioral issues, however I would just not want to deal with it. I'm so sorry. Awful situation.
-Cat

Well, looking at the timeline, I wouldn't say that MINOR versions of these behaviors are out of whack for his age...
8 and 9 - mouthing off and being able to turn the mouthiness on and off when it suits him.
10 and 11 - using button-pressing and manipulation to get his way or retaliate when he feels slighted for some reason.
BUT, the degree you've described isn't normal and that needs to change.

What, specifically, would you like to see change? Obviously you want SS to not do these things anymore, but what level of changes are you willing to make? What about DH?
If we know what your goals and limitations are, maybe we can give concrete suggestions?

To be honest, one of two things. We have very good kids. I really mean that manners, respect, we teach that you treat others the way you want to be treated. I am tough on my kids but is because I want them to be a positive contribution to the world . When I say tough I will explain ... each one of my kids is different what works with one does not work with the other. I believe that If I tell them to jump they should not question me . because I am only trying to help them. perfect example .. we were walking around a pond a few years ago and I spotted a snake I was unable to go into detail about the snakc with the kids but , because they listen I simply said stop . and without backtalk or question we avoided a bad situation. I am unable to get ss to listen. he back talks , is disrespectful . I can not deal with these actions and my kids see this and they begin to push the bar .. i do not have the time with him to help him and his mother denies anything is wrong .. I want to help him but can not , because he is only here for 7 weeks a year. I want him to feel at home , I want to treat him like the other children but I can not . The other kids respect us , he does not. I guess maybe to see what other people have done in this situation.and get some advice . part of me just wants to take my kids when he gets here and leave , i love my husband and I know he is stuck and I know that one day this will not be an issue/ Will he ever just stop coming to visit? DOes this happen?

I think you should recommend to DH that SS get counseling. he really needs it to work through his obvious issues. DH may also want to meet with someone at his school about it. Unfortunately this could escalate into juvenile delinquency if not addressed. You said he tried to kill himself? He was immediately put into counseling after that, right?

There's a couple of things that stand out to me. I think, besides your SS needing counseling, your DH and you need counseling as well. He should not be questioning you in front of SS.

Is SS still not returning messages/calls? I see a huge problem with that as well - an 11 year old does not get to decide to not communicate with their father, and his mother should be held accountable for allowing him to behave that way. What is this child being told that makes him think that that is acceptable behavior?

I rather feel a bit sorry for the boy. Not saying his behavior is correct or should be acceptable, but trying to look at this from a kids point of view, it's gotta be tough for this boy only seeing his father once a year (for 7 weeks) and being expected to suddenly adjust for those weeks into a completely different role.

It sounds like the father is at work at least a good share of the 7 weeks the child does 'visit'. Is it possible for dad to arrangement a good stretch of vacation time during this 7 weeks? Dad needs to be the one spending the majority of the time with the child.

I think it's a big order to automatically expect the child to react and behavior exactly as his stepsiblings do. He's not been raised in the same manner, and your husband is leaving it to you to do the adjusting situation. Totally unfair to you, the child and your children.

Perhaps two or three visits a year would work better...no clue as to what kind of earned time off your husband gets or what kind of flexible postion he works...but several smaller visits maybe arranged around the child's school holidays would give the father and child more father/son/family time and experiences.

The child sounds terribly jealous and resentful. Yet it's you left dealing with it.

I doubt things will get better or much if anything can be worked out concerning interrelationships the way things stand on. I think counseling for the child might be a good idea, but if he truly is a well behaved, mannered, basically trouble/problem free child 10 months of the year while at mom's, the child is not going to readily see himself as the 'bad guy'.

I also think that joint counseling between you and the father is a good suggestion. While you may have no problems/issues raising your household 10 months a year while it is just your kids , you and the stepdad/husband, there appears to be a total fallout when it comes to the other 7 weeks a year. Dad and you need to learn how to work together for this 7 weeks or dad needs to be the one home with the child doing the day in day out stuff. Until that happens you're going to be viewed (to the child) as just the 'evil stepmom' who means squat to him and he can and does dismiss at will.

Thank you so much for all the replies. let me hit a few issus. after ss threatedto kill himself we did take him to cousiling one time and then he had to go home to his mother she refuses to admit anything is wrong with him so of course it must be something WE are doing. My heart hurts for this child so deeply yet i am torn bewteen what i want to do and what I really can do. I want him to come live with us so we can help him .. this is not going to happen though. i fee like i chase my tail ..the time is so short to change anything with him or help him . and if thre is any change by the time we see it is time for him to go home. the travel from his home to ours is 2000 miles we can not have small visits by the time he gets here it would be time to go home. This summer my husband was off all summer he had surgery and because of his profession he wasnot allowed to go back to work until he was 100% no light duty. the other kids were in school for the first 3 weeks of the visit. I let the two of them bond.witout me..just father and son.no change in behavior still disrespectful.even worse when he was headed home he told me he was mad at his dad cause he did not spend anytime with him.. they spent almost 6 weeks together. remember my kids went to my moms for a month .. if there was going to be a time that they could bond it would have been this summer. he had been gone 5 weeks and again no calls nothing. altough it is not right for him to not call to courts will not do anything about it. we live so far apart we are not involved with school or anything. it is tough but it is my dh son and i love him. you are rightfor 10 months out of th year my home is blissful but the time that he is here my life is hell.

Ditto to what Justmetoo said. It's so easy to see the behavioral problems yet sometimes we need to look deeper and find the root cause... Whatever he's going through will follow him into adulthood and color his entire perception if it is not dealt with. It seems to me that the majority of the problems revolve around his relationship with his father - maybe him and his father need to take a one-on-one vacation together (camping, etc.). The other kids get a father all year round, he gets to share his father with the other kids for 7 measly weeks.