Probably the most common question, with the answer that is the most unknown. While this answer is not one that you would like to hear, in truth it depends on many circumstances. Medical expenses, living expenses, court filing fees, home studies, etc... The total can range $15,000 - $40,000.
While there is a possibility for the first few days after birth, the biological parents do sign a waiver of parental rights. So long as you do your due diligence and are a fit parent, then there is very little recourse that can be done to take a child from you after placement. In Oklahoma, it is essentially relinquishment of rights are irrevocable, so long as an adoption petition is filed in a timely manner, no other relinquishment had been filed for the same child, and there was not fraudulent action by the adoptive parents.
The total length of adoption has many variables. The length can vary from just a few months to over a year. Things that can potential affect the time are:
A home study is where a social worker comes to your home and interviews you to make sure that everything is in place so that the adopted child will have the greatest chance of success in life. They will evaluate many things including safety, finances, criminal background check, etc...
According to state law the home study must at least include:
The short answer is yes. The long answer is that it depends on the other biological parent. Generally, if the other biological parent still has parental rights then in order for your child to be adopted by your current spouse, the other parent will need to allow it.
There are many differences, starting with the finality of the adoption. In adoption, the parent will be granted full legal and permanent parental custody. Whereas foster care the custody is temporary in most instances. However, in many instances foster parents will eventually adopt the child in their care.