I have a letter from a law office saying that they are going to make a judgement on me for a credit card I once had with a balance of around 4000 dollars... I called them to see if I could make payments of 100.00 dollars a month and they will not accept anything less than 1500 dollars down and 200 a month... I can't afford that kind of money... I have 3 babies... what is the worst that they can do?. I here about them being able to put a lien on my house and vehicles... can they take my car and house?

Ok, first mistake was to call them and even admit you owe the money and to make any offer before you checked the statue of limitation and make sure they could even take you to court. Normally if they really wanted to go to court for a judgement, they would just do that, not send you a letter threatening to do it.

But that is now water under the bridge, I would write them ( never call them) and contest the amount and ask for them to supply proof of the debt.

Ok, next they want money, not a lien on a home or a car.
So if they get a judgement, their first move would be to after any bank accounts and take any money in them ( even if you have checks out on the balance in the bank, they take what they find) next if you are working they would garnish your pay, taking @ 25 percent of your check.

So that is about what they could do.