Relating With In-Laws

TGD RELATIONSHIP CORNER

Good day ladies. How are you doing?
I got the message below from one of our sisters. I believe it's worth discussing. 
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Good evening ma. How is the family?
Please ma, can we have a discussion in TGD on how to relate with our in-laws especially mothers- and sisters-in-law?

As usual, I have specific areas I'll like us to address
1. What attitudes/behaviours can we specifically exhibit as wives/wives-to-be that will help us build cordial relationships with our in-laws? What attitudes/behaviours should be avoided at all costs?
2. What attitudes/behaviours can we specifically exhibit as mothers-in-law that will help us build cordial relationships with our daughters- and sons-in-law? What attitudes/behaviours should be avoided at all costs?
3. What attitudes/behaviours can we specifically exhibit that will help us build cordial relationships with the spouses of our siblings and relatives as well as their extended family members? What attitudes/behaviours should be avoided at all costs?
4. What can we do to ensure that OUR own family members are not the sources of conflict in our marriages?

Please share your views, experiences and even scriptural references.