When your client is an adult, lien math is a private negotiation. You cut the deal you can with the health plan, take your fee, and cut the check. When your client is a minor, every one of those numbers goes in front of a judge whose only job at the hearing is to protect the child — not to bless the arrangement you and the lienholders find convenient. The petition to approve a minor's compromise, governed by Probate Code sections 3500 through 3613 and California Rules of Court 7.950 through 7.955, turns your settlement statement into a public document a bench officer will read line by line.
That review changes the order of operations. In an adult case you often settle the liens after you know your net fee. In a minor's case the court is looking at the whole waterfall at once, and a lien you treated as fixed is frequently the number the judge pushes back on first. Getting the arithmetic right before you file — and being ready to defend each reduction — is the difference between a same-day approval and a continuance that costs the family weeks.
The approval workflow, and why liens surface early
A minor cannot compromise a claim. Code of Civil Procedure section 372 requires a guardian ad litem, and Probate Code section 3500 makes court approval a condition of any binding settlement of the minor's cause of action. The mechanics run through a verified petition on Judicial Council form MC-350, supported by the medical records, the settlement agreement, and a full accounting of proposed disbursements.
Rule 7.951 requires the petition to disclose the amount and nature of every lien and how it was calculated. That disclosure obligation is why liens surface early: the court cannot evaluate the net recovery to the minor without seeing the gross settlement, the attorney fee, the costs, and every reimbursement claim in one table. If a lien is unresolved at the time of the hearing, most departments either continue the matter or approve the compromise while ordering that a specified sum be held back pending resolution. Neither outcome speeds up the file, so the working goal is to walk in with liens either paid, waived, or reduced to a stated figure.
Allocation review is the lever the court actually watches
The single most consequential number in a minor's petition is often the allocation between the minor's claim and any derivative claim held by a parent — typically the parent's own claim for medical expenses they were legally obligated to pay. Under the common law and Civil Code principles governing a parent's duty of support, the pre-majority medical bills are frequently the parent's damages, not the child's. That distinction matters because the health plan's reimbursement right generally attaches only to the recovery for the expenses it paid.
This is the same logic that limits a Medicaid lien to the medical-expense portion of a settlement, and it gives you a principled basis to allocate a larger share of the gross to the minor's general damages — pain, disfigurement, future loss — where a past-medical lienholder has no claim. Courts are alert to allocation that exists only to defeat a lien, so the allocation has to track the actual injuries and the actual liability picture. When it does, the reduction is defensible; when it is a round-number afterthought, expect the judge to ask why the split looks the way it does. The same allocation discipline that helps you here shows up whenever a plan tries to reach beyond what it paid, a problem examined in our look at Medicare Advantage recovery rights.
Running the Medi-Cal and health-plan reductions
For a minor covered by Medi-Cal, the Department of Health Care Services asserts its statutory reimbursement right under Welfare and Institutions Code section 14124.70 and following. The statute contains its own reduction framework: the department's recovery is reduced to account for a proportionate share of attorney fees and litigation costs, and it may not exceed one-half of the beneficiary's recovery after those deductions. On top of that statutory floor, the Ahlborn line of authority limits the lien to the portion of the settlement fairly allocable to past medical expenses, which is where your allocation work pays off a second time.
Private ERISA plans and other contractual reimbursement claims run on different rules, and the reductions you can win depend on plan language and the make-whole and common-fund doctrines your circuit recognizes. The one reduction available across nearly every lien type is the procurement-cost share — the idea that a lienholder who takes from the recovery should bear a proportionate slice of the fees and costs that produced it. That principle, and how to press it, is the subject of making lienholders share the cost of the recovery. In a minor's petition, applying it is not optional courtesy; the court expects to see the net-to-minor figure reflect that the lienholder carried its share of the freight.
Attorney fees are capped by the court, not the retainer
A retainer signed by a parent does not set your fee in a minor's case. Rule 7.955 requires the court to determine a reasonable fee based on the facts of the specific matter, and it lists the factors: the time and labor required, the risk of loss, the amount involved, the result obtained, the attorney's experience, and any contingency. Many departments carry an informal benchmark — often 25 percent of the gross for a routine, quickly-settled claim — but the rule is a reasonableness test, not a hard cap, and a heavily litigated case can support a fee at or above the standard contingency percentage if you document the work.
The practical point for your lien math is that the fee is a variable the court sets, and the net-to-minor calculation flows from it. File the Rule 7.955 declaration describing the work actually done. If you are counting on a lien reduction that assumes a particular fee, and the court trims the fee, the whole waterfall shifts. Model the sensitivity before the hearing so you are not recalculating reductions at the counsel table.
Where the money goes: blocked accounts and special-needs trusts
Once the net figure survives review, Probate Code sections 3600 through 3613 govern disposition. The default for a modest recovery is a blocked account under section 3611 — funds deposited in an insured account, withdrawable only on court order, released to the minor at 18. For larger recoveries, or where structure suits the injury, the court can order an annuity or other arrangement under section 3610 and following.
The interaction that reshapes your lien math is the special-needs trust. Probate Code section 3604 authorizes the court to order settlement proceeds into a first-party special-needs trust that meets the requirements of 42 U.S.C. section 1396p(d)(4)(A), preserving the child's eligibility for Medi-Cal and SSI. Funding an SNT does not erase the past Medi-Cal lien — the department's reimbursement claim on the current recovery still gets satisfied at settlement — but it protects future public benefits by keeping the corpus out of the eligibility calculation. A (d)(4)(A) trust carries a Medicaid payback provision at the beneficiary's death, so the estate reimburses the state for benefits paid over the child's lifetime. That deferred payback is a separate obligation from the lien you settle now, and conflating the two is a common drafting error. When an SNT is on the table, build it into the petition from the start; retrofitting a trust after the court has approved a blocked account means a second petition.
Bringing the numbers to the hearing
The petition that clears quickly is the one where the judge can trace every dollar without asking a question: gross settlement at the top; attorney fees and costs supported by a Rule 7.955 declaration; each lien listed with its statutory or contractual basis, its original amount, and its reduced figure; the allocation between the minor and any derivative claimant explained by the injuries; and the net to the minor routed to a blocked account, structure, or SNT. Reductions you negotiated — including the carrier waivers discussed in the subrogation-waiver playbook — should appear as line items with the paper to back them.
The lien math in a minor's compromise is not harder than in an adult case; it is simply audited. Every reduction you claim, you have to be able to defend to someone whose loyalty runs entirely to the child. Do that work before you file, and the hearing is a formality. Skip it, and the continuance is the least of what the family loses.