How to quantify the true buy‑vs‑rent opportunity cost: a math-first model using mortgage rate, expected equity returns and local rent growth

I’ve worked with many buyers who don’t have a permanent contract but still dream of owning a home. In this piece I’ll explain, from practical experience and market data, how to obtenir un prêt immobilier en CDD — what banks look for, which documents make the difference, and how to build a file that convinces an underwriter despite the absence of a CDI.Why lenders treat CDD borrowers differentlyAs soon as I review a loan file with a CDD...

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When a single stock or cryptocurrency position has run up to represent a large portion of your portfolio, the question shifts from “should I sell?” to “how can I exchange that concentrated gain into sustainable, tax-efficient income without inviting a giant tax bill or exposing myself to massive reinvestment risk?” Over the years I’ve worked with clients and run this exercise for my own accounts. The combination that makes the most...

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I often get asked what it really takes to claim energy tax incentives in France, and in 2026 the rules around the credit d’impôt have evolved in ways that matter for homeowners, landlords and investors. In this article I walk you through, in plain terms and with practical steps, the conditions pour bénéficier du crédit énergie 2026, eligibility traps to avoid, and how to integrate the credit into renovation budgeting for residential...

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I underwrite office-to-residential conversions the way I underwrite any high-uncertainty real estate play: layer in conservative assumptions, build in optionality, and make sure the math holds up across a range of interest-rate and leasing scenarios. Converting offices to apartments can be an attractive path to capture housing demand, but it’s also a regulatory, construction and market puzzle. Below I walk through the practical steps I use —...

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I often get questions from readers who want to tap the equity in their homes but worry about the portfolio consequences: “Can I extract cash for opportunities or diversification without turning my balance sheet into a levered mess?” In my work with investors and real estate professionals, I’ve found a practical framework that consistently helps: build a staged home-equity extraction ladder using HELOCs, cash‑out refinances, and...

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If you want a low-cost, tax-smart way to tilt a taxable account toward small-cap value, my starting point is simple: use core, ultra-low-cost ETFs for the broad exposure, and add a focused small-cap value ETF (or two) to implement the tilt. That gives you the efficiency and tax advantages of ETF wrappers while keeping the implementation straightforward and easy to manage.Why combine Vanguard and BlackRock ETFs?Vanguard and BlackRock’s iShares...

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I often get questions from readers about the practical side of taxes and family obligations: can you déduire une pension alimentaire de ses impôts, and if so, how do you do it correctly without triggering an audit or leaving money on the table? In this article I walk you through case 6QR on the French income tax return, what qualifies as deductible, documentation you need, common pitfalls, and a step‑by‑step approach I use when I review a...

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I often get asked whether it's better to structure a 1031 exchange into a Delaware Statutory Trust (DST) or to buy replacement property directly. Both routes can satisfy the like‑kind requirement for a 1031 exchange, but they feel very different in terms of control, fees, cash flow, liquidity and exit paths. Below I walk through the practical trade‑offs I use when advising investors, with concrete comparisons and the kinds of questions you...

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I often get asked whether a property makes more sense as a short-term rental (Airbnb) or a long-term lease. The intuitive answer—“it depends”—isn't very helpful. What I find useful, and what I’ll walk you through here, is a reproducible stress-test approach that combines occupancy shocks and market comps to give a clearer, data-driven recommendation for your city and your property.Why you need a stress test, not a fantasy budgetOwners...

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I often use option collars around dividend ETFs when I want to increase current yield without exposing the portfolio to unlimited downside. A properly constructed collar can convert a passive dividend position into a structured income engine: you keep the dividend, sell upside for premium, and cap downside with purchased puts. Below I walk through practical sizing, cost math, strike and expiration choices, rebalancing rules, and real-world...

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