Of course, you'll need to stress test the new debt against the performance of the property. 

VRBO freezes when I try to accept a request to book, after I've personalized my response and clicked "accept".

Verify regulations, taxes, and insurance by submarket, and pressure‑test numbers with a PM before offers.

A properly installed radon mitigation system with post‑test results under typical safety thresholds doesn’t devalue a property; if anything, it reduces a future buyer’s objection by turning a health risk into a solved, documented feature.

@Andrew SteffensREPS has 2 primary tests.1) 750 hours and more than 50% of your working time.2) Material participation in your LTRs.Time that qualifies for material participation in your LTRs can also count toward time in the 750 hours and more than 50% of your working time test.The first test is generally more "inclusive" which could mean time being a realtor, property manager for others, etc. 

I work primarily in multifamily and short-term rental investing — and over time, I’ve had many conversations with investors about the unfiltered side of real estate: the deals that didn’t go according to plan.Whether it’s unexpected costs, regulatory curveballs, or guest and tenant issues that test your patience, these stories always seem to reveal the same truth — the best investors aren’t just great at finding opportunities; they’re great at managing chaos.Through my investor interviews and real-world deal analyses, I’ve noticed that every “horror story” tends to leave behind one valuable thing: a framework for better decision-making.

Scale only works if each asset meets the same bar.Model approachI built my own underwriting model, but many solid templates exist online now.Key focus areas• Purchase basis (true landed cost) vs comp set• Rehab scope and sensitivity• Rent comps and lease-up timing• OpEx realism (maintenance, turns, taxes, insurance, management)• Debt structure and stress tests• DSCR and breakeven occupancy• IRR, equity multiple, unlevered and levered yield• Market concentration vs diversification• Hold period assumptions• Refinancing and interest-rate exposure• Lease absorption• Downside stress tests (rent drops, tax increases, insurance shocks, rates, vacancy)How I use it• Every deal goes through base, downside, and worst-case underwriting.• Comps and cost assumptions get cross-checked across multiple sources.• I separate the “investor story” from “spreadsheet reality.”

Test it on paper before swinging a hammer.

Maybe you want to ask other first floor owners to test their units.

Run a simple hold-vs-upgrade test.