No, California community property laws do not apply to child support. The biological parents of a child/children are the only ones who can be held legally responsible for financial support.
Answer
Yes, it is a requirement to include the income in a request for a modification. see links below.
No, only biological parents are financially responsible for their minor children.
Your new spouse is not responsible for your child(ren).
probably not
No. A new spouse is not obligated to pay for a child they did not help conceive.
not yet see links below
The new spouse is not responsible for his/her spouse's children.
In general, (re)marriage should not increase or decrease one's child support obligation, regardless of the new spouse's income or the presence of stepchildren.
Spouses are not responsible for their spouse's child(ren). However, to collect unpaid support, the State may place liens on real and personal property, including bank accounts, owned by the obligor, even though the spouse is a joint owner.
nope, only takes the mother and fathers income into account. Spouses of the parents are not included
No.
no
That depends on the state see links
Child support is based on a formula of income and percentage of time spent with each parent.
Probably not.