Pick your battles, i wouldnt waste time on something as trivial as her signing a paper, That wont have any affect on the childrens mental state or well being, Save it for the big stuff,,,,if there is big stuff, If shes good to them and treats them right and doesnt try to fill your shoes, let it be,,,,,,,in years to come your children will thank you for having such grace,
I am a bio mom and a stepmom. I get along wonderful with my ex's wife, we have a very good working relationship. I welcome any of her input because it just makes my son a stronger and happier person,,,but she also knows where to draw the line, She respects me as his mother and in return i never give her a hard time, Shes a good ally when it comes to raising my son also, and he never has any stress or worries that if he shows me he likes her i will be mad,
Now the stepmom part,,,,,,,,,,,im dealing with a bio mom who doesnt even have time for her kids , complains every 5 seconds about stuff, wont allow me to even talk to her children yet complains if im busy and cant take the kids to the doctors or a school function,,,,,,,,,,,yes i take the kids to the doctors and school functions because thier dad works all day and thier mother is usually off getting her nails done and dog groomed and is to busy,,,,im not kidding,,,,,,,,and i have signed thier school reports on occasion, not always, there are days wwheen i just look at my husband and say not my job,,,hes a good dad but when he gets home from work the kids give him papers and he forgets , and there are times he signs papers for my son,,,its all about whose available at the time so if they are sitting ont he table and i walk by i sign it and put it in thier book bags.
one thing i had to leaarn about being a step mom and sharing responsibility with others is the fact we are all trying to have our own households and own lives, i refuse to live in my home and have his ex dictate to me what i can and cant do in my own home,,,,and i wont do that to my ex, i dont live there , never have and its not my right to tell them what to do, because i dont tolerate when its done to me,
there are a lot of other nasty step mother behaviors to look for,,,,,,,,,,,,as hard as it is and as much as you hate it suck it up and let her do what shes doing,,,,,,,only step in when the kids are suffering and its affecting them,,,,because int he long run they may be happy and its your behaviors that will affect them,,,,you dont have to save face for her or your ex, they dont care about brownie points,,,think about your kids,