The legal age of consent (sex) in California is 18 for either male or female. So if you date with parents permission, then it's ok. But in so many paces in California the courts can and will lock up your boyfriend if the D. A. Can show you did in fact have sex.
Your conviction in Juvenile Court is a "non 707 (b) offense". You can go to the clerks office in the Court you were placed on probation at and ask for the forms to get your Juvenile records sealed. Fill them out and you will be notified when your sealing request goes to the Court. Appear and ask the Judge to seal your records. Remember you must not have any arrests and/or convictions in adult court to be able to do this.
Your house can be searched but only the area where your son sleeps, ie: his bedroom and only if he is 1) on probation and 2) there is a "search condition" as part of his probation conditions. If the search was conducted and something incriminating was found and there is no set of probation conditions than the item was illegally seized. My answer to whether you need a lawyer or not depends on more information.
Your two younger brothers will be taken before a Judge for a "detention" hearing who will decide to keep them detained until trial (15 Court days) or can release them home with a date to come back and/ put them on HSP (home detention with an electronic bracelet). they will be appointed a Lawyer each and then have the right to have a trial. If found guilty they could be sent to a group home (up to a year) or to a probation camp for 4,8 months or a year. They can also be sent home on probation....
Juvenile? Your question doesn't say but I'll answer as if your under 18 and then over 18. 1) License suspension 2) a criminal record 3) In Orange County? Possibly time in Juvie Hall and/or Orange County Jail.3)A fine Besides the charge of using a phony ID you might get charged with identity theft but I doubt it. Best legal advice is "don't use it" Destroy it and don't take the chance. It's not worth it.
More than likely the D.A. will file for what is called a fitness hearing which attempts to place the 16 year old in adult court. If sent to adult more than likely your looking at 25 to like or life without parole. IBarring exceptional circumstances, more than likely the 16 year old will go to adult.
I believe the charge is one that "doesn't" carry a mandatory license suspenstion. You should quote the charge on the ticket when asking the question. You are an adult, not a Juvenile so you would go to OC superior Traffic Court for the MIP and ask for the Public Defender who is experienced in that particular Court. the offense should carry only a fine.