Possibly. However, you may have delayed too long and dampened attorney enthusiasm to take on this case.

Yes. Your agreement to voluntarily pay CS arrears should not affect SSI benefits if you "try to make it on your own".

Yes. Mother may place restrictions on who may care for her child(ren). You may similarly petition for grandparent rights.

Possibly. Court may summarily dismiss case if required actions not taken within five years of original file date.

Yours is too complicated to unravel and advise in this forum. Generalizations not helpful. Each case is unique. Hire EP counsel to analyze and...

Best available option is to create trust which names GF and son as beneficiaries. Your attorney can create a a revocable or irrevocable trust and...

If you secured CC loan with vehicle, the secured creditor may refuse to relinquish security interest until the loan is paid off or alternate...

Stipulation alone not sufficient to terminate CS enforcement. Hire counsel to petition to terminate CS based on changed circumstances.

Possibly. POA executed in UK may be valid in CA if it is valid and enforceable under UK or CA law. Review the POA with CA counsel to assess...

Possibly. Need to administer deceased sister's estate depends on information not provided. I need more information to further advise.