There's the problem; what you got back was NOT a notice of entry of judgment (FL190) , but a notice of entry of default. (FL 165).
You MAY be able to have the case "un-dismissed" and have a judgment entered "nunc pro tunc" (retroactively) but you'll almost certainly need an experienced attorney to make it happen.
A. If he prepped them, and he's an attorney, then he would not normally be required to sign 'em.
B. Although his signature line is not exactly correct (it should really say "approved as conforming to order") ALL you're doing by signing is confirming that the order as he prepared it accurately says what the judge ordered, WHETHER OR NOT you agree with what the judge ordered. If you don't sign off on the order, and you don't object to it, then if the attorney has to do additional work to get...
If he's not on title, the lien won't attach to the house. It's a good idea to put the lien in place (by getting and recording an "Abstract of Support Judgment") anyhow; it'll stay in place until ALL the support is paid, and will attach to ANY real estate that ever gets his name on it.
The prior response is mistaken; a third party can be joined, by motion, (now an "RFO") to a California dissolution action. The third parties generally are involved in the custody of children, or have involvement in ownership/possession of community property.
Once the RFO (motion) is granted, the court will issue a summons and pleading on joinder, and then and only then will the summons and pleading be served upon the "joined person".
You may not need an appraiser OR an accountant. You can probably finish it up with some (limited) assistance from an attorney for each of you; you're much better off making sure all the documents are done correctly for each of you the FIRST time, particularly when real estate's involved, than missing something, and finding out twenty years later, when someone's trying to sell or refinance, that something was missed and needs to be fixed.
If you're in agreement on the general framework of...
NO, it isn't a violation of a joint legal custody order, unless the order says something specific about that issue, You've raised the issue with a judge, and it apparently didn't rise to the level of an issue which got the judge to change his order. If there's a joint legal custody order, that means that the court trusts your day-to-day decision making while your child's with you, and your ex's decision-making while the child's with HER. Judges don't like to micro-manage who your child...
To get child support from him, either (a) he's going to need to sign a valid acknowledgement of parentage, or (b) a court is going to have to determine that he's Dad. That makes him legally Dad for all purposes. While it won't change the child's name, it will mean that he can ask for, and may be given visitation or custody rights.
A. It's not ethical, in most cases, for a family law attorney to handle anything other than a collection case on a contingency basis and (B) what's your theory as to why you should get 100% of something that's community property?