A planning platform shows the user the projections the user wants to see (the percent-funded bar moves, the longevity curve holds). Decision Center adds a second column: Base Facts versus an advisor-defined Strategy scenario, comparing both. A reasoning engine adds something different — conflicts surfaced as first-class output, including the ones where two of the engine's own specialist agents recommend the same strategy at different sizes, and the engine flags the disagreement. Rivalta surfaced 8–12 cross-domain interactions per household; eMoney renders trade-offs through the Decision Center paired-scenario layout and the advisor's narration of the differences.
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Liquidity vortex · Rattigan
Cumulative first-year draw against the $286,506 liquid pool is far larger than any single strategy assumed: catch-up contributions ($65,000), backdoor Roth funding ($34,000), Roth-conversion tax payments, ILIT Crummey gifts, a new hybrid-LTC premium, disability and term premiums, and 529 funding can plausibly consume 40–60% of the entire reserve in year one. No single recommendation models the full stack. Resolution: build one consolidated annual cash-flow budget, funding guaranteed tax-advantaged moves first and treating LTC and 529 as discretionary residuals.
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Multi-agent RLT duplication · Rattigan
Three separate agents each recommend a revocable living trust with overlapping, inconsistent funding instructions — Estate funds it with both real-estate properties, Entity funds it with the primary residence plus an LLC interest plus liquid investments, and Retirement Income directs a separate wills/beneficiary review. Uncoordinated execution risks conflicting deed re-titling and beneficiary designations that lose see-through status on the $688,776 in retirement accounts. Resolution: one estate attorney drafts a single integrated document set reconciling all three funding schedules.
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Roth conversion → IRMAA tier · Price + Stein
Crossing the $218K MFJ MAGI ceiling by $1 adds $974/year in Medicare surcharges, with a two-year lookback. For Price, the Roth ladder, capital-gains harvesting, and a mandatory Inherited-IRA RMD all draw on the same razor-thin headroom below the tier. For Stein, household income already sits above the first tier, so even modest bracket-fill withdrawals must be sized against the next breakpoint. Resolution: compute discretionary MAGI room after mandatory income first, then allocate it in strict priority order.
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Widow's penalty amplification · All three
Loss of one Social Security check plus the shift to single brackets compresses the surviving-spouse plan in all three households. The stress point differs by household — an under-funded retirement balance for Price, a $6.88M concentrated position for Stein, no estate documents on record for Rattigan — but all three must be solved against the surviving-spouse scenario, not the joint-life one, with conversions accelerated while both spouses are alive.
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Real-estate assumption gating · Price
Known liquid assets ($776,950) plus retirement assets ($1,324,570) sum to exactly the stated $2,101,520 net worth — meaning no real estate value is implied by the balance sheet, and none may be assumed. Yet the foundational estate plan, the entity/homestead work, and the Illinois homestead exemption are all built on possible real property. Resolution: treat a real-estate holdings inventory as a gating prerequisite before finalizing any trust-funding language or homestead filing.
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Single-asset multi-claim · Stein
The $2.1M rental apartment building is simultaneously the subject of four mutually exclusive treatments: a Section 1031 exchange held until death, an entity/trust transfer (SLAT/IDGT/Series-LLC/SDIRA/FLP), the 'gift-now vs. step-up' analysis naming it as the transfer candidate, and a cost-segregation study that assumes continued ownership. A 1031 hold-until-death is incompatible with gifting it into a trust; cost-seg benefits are largely wasted if the property is exchanged. Resolution: resolve the retain-vs-dispose decision first, then gate every downstream treatment on that single outcome.
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FLP/LLC seasoning vs gifting timing · Rattigan + Stein
Family LLCs and FLPs must be seasoned 6–12 months between formation and the first gift of interests. Contemporaneous formation and gifting invites IRC §2036 inclusion. The engine surfaces this as an ordering constraint rather than as a recommendation, because it determines whether the gifting move is defensible in both households.
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Total-transfer over-commitment · Stein
Summing the value transferred across every recommendation — the rental 1031, the exchange fund, entity/trust funding, the concentrated-stock vehicle, the ILIT, the gift-for-basis segmentation, the CRUT, the IRA-to-charity designation, 529/annual-exclusion gifting, and bracket-fill — totals roughly $24M against an authoritative net worth of $20,781,292, even before the plan also directs retaining $3.2M of residences for basis step-up. No pairwise check catches this because each recommendation is individually plausible. Resolution: build a single asset-source ledger, assign each asset block to exactly one strategy, and never sum savings figures across vehicles drawing on the same dollars.