Why LPs Should Understand How Deals Get Underwritten

Most accredited investors evaluating a syndication opportunity receive a polished offering memorandum with a projected return table, a summary of the business plan, and a set of assumptions buried in a financial model. The investors who make the best decisions are the ones who can look at those assumptions and know immediately whether they are disciplined or optimistic, and why.

Understanding how sponsors underwrite deals is not about replicating the analysis yourself. It is about knowing what questions to ask and what answers should concern you. A GP who can walk you through their underwriting logic clearly and defend their assumptions under scrutiny is a GP who has done the work. One who deflects, oversimplifies, or cannot explain the key sensitivities in their model is one to approach with caution.

This post explains the core components of multifamily underwriting from the LP's perspective, with a focus on what matters most and where to probe.

The Starting Point: Current Income and Basis

In-Place NOI and the Entry Cap Rate

Every multifamily underwriting begins with the property's current net operating income. NOI is simply gross rental income plus ancillary income minus operating expenses, not including debt service. It is the income the building generates before any financing costs. Dividing NOI by the purchase price gives you the going-in cap rate, which is the yield the buyer is paying for current income.

A higher going-in cap rate generally means the buyer is paying less relative to current income, which provides more cushion if things go wrong. A low going-in cap rate means the buyer is paying up for either quality, location, or projected upside. Neither is inherently right or wrong, but the implication for risk is different. A deal underwritten at a 5.5% cap on current income has less room for error than one underwritten at a 7.0% cap.

Red Brick Equity targets deals in the Chicago and Midwest market where the combination of current income, value-add potential, and financing structure produces a path to 15-20% IRR without requiring cap rate compression at exit. That means paying attention to entry basis discipline as much as return projections.

The Basis Per Unit

In multifamily, experienced operators think in terms of cost per unit as much as cap rate. The basis per unit includes both the acquisition price and projected renovation costs. A market might trade at $80,000-$120,000 per unit for stabilized Class B product. If a value-add deal can be acquired and renovated for $70,000-$80,000 per unit, the resulting basis provides a built-in margin of safety relative to where stabilized comps trade. If the all-in basis approaches or exceeds what stabilized assets sell for, the upside depends entirely on rent growth rather than value creation.

Underwriting the Value-Add Business Plan

Current Rents vs. Market Rents

The core thesis of most value-add deals is that in-place rents are below market, and that a renovation program will close that gap. Sponsors will present a rent comparison showing current in-place rents alongside rents achieved at comparable renovated properties in the same submarket. The credibility of this analysis depends on how closely those comparables actually match the subject property in terms of unit size, location, and finish level.

The rent-to-market gap matters because it defines the ceiling of the value-add upside. If in-place rents are already at 95% of market, there is limited room for rent growth through renovation. If they are at 70% of market, a well-executed renovation program can create substantial income growth. Investors should ask sponsors to share the specific comps they used and verify that those buildings are genuinely comparable.

Renovation Scope, Cost, and Timeline

A value-add underwriting requires a renovation budget per unit along with an assumption about how quickly units can be turned and renovated. Common unit renovation scopes include new flooring, updated fixtures, refreshed cabinetry, and modern appliances. The cost per unit varies by market and scope but typically runs from $8,000 to $25,000 per unit for a light to moderate renovation.

Red Brick Equity builds renovation budgets appropriate to each deal, with contingency built in for conditions that surface after closing. The depth of the budget depends on the condition of the asset and what can be assessed at underwriting. The priority is conservative, realistic budgeting rather than a rigid templated process. What matters most is that the budget reflects actual conditions and that there is enough cushion to absorb the unexpected, not that every deal follows an identical line-item format.

The timeline assumption matters because it determines when income growth is captured. If a sponsor assumes all 100 units can be renovated and re-leased within 12 months, that is an aggressive pace. A more conservative plan might assume 18-24 months with an additional contingency buffer. Renovation timelines are one of the most commonly underestimated variables in value-add deals.

Underwriting Component	What to Ask	Green Flag	Red Flag
Entry cap rate	What is the going-in cap on trailing 12-month NOI?	Above 5.5% for Class B Midwest	Sub-5% with thin rent-to-market gap
Rent-to-market gap	What are the comp properties and how similar are they?	Specific, verified comps within 0.5 miles	Comps from different submarket or newer vintage
Renovation budget	What does the per-unit scope cover and is there a contingency?	Clear scope description, contingency buffer built in, track record of accurate budgets on prior deals	No contingency; no comparable prior renovations to reference for cost accuracy
Renovation timeline	How many units per month can realistically be turned?	Conservative pace with buffer	Assumes full building turned in under 12 months
Exit cap rate	What exit cap rate is assumed in the base case?	Equal to or above entry cap rate	Cap rate compression assumed in base case

Operating Expense Assumptions

What Experienced Operators Include

Operating expenses on a multifamily property include property taxes, insurance, utilities for common areas, repairs and maintenance, property management fees, payroll for on-site staff, and administrative costs. A complete underwriting includes all of these line items with market-level assumptions. Sponsors who present expenses as a single percentage of revenue without line-item detail are either shortcutting their analysis or obscuring a number that does not hold up under scrutiny.

Property management fees typically run 4-8% of collected revenue depending on market and deal size. Property taxes in many markets are subject to reassessment after sale, which can increase the expense load. Insurance costs have risen across many markets. Experienced sponsors factor these trends into their underwriting rather than using historical actuals that may not reflect future costs.

The Expense Ratio Check

A useful cross-check is the expense ratio, which is total operating expenses divided by gross potential revenue. For Class B and C multifamily in the Midwest, a reasonable stabilized expense ratio runs between 40-50% depending on market. An underwriting showing a 30% expense ratio should prompt questions. An underwriting at 50-55% may be conservative, but that is the right direction for the error to go.

Debt Structure and Financing Assumptions

Loan Type and Terms

Multifamily deals are typically financed with either agency debt (Fannie Mae or Freddie Mac) or bridge loans from a bank or debt fund. Agency debt offers longer terms and is generally fixed-rate, which eliminates interest rate risk during the hold. Bridge loans are floating-rate with shorter terms, typically two to three years with extension options, and carry more financing risk if rates move or the business plan takes longer than expected.

A common question LP investors should ask is whether the deal has a rate cap in place if it is using floating-rate debt. A rate cap limits the maximum interest rate the borrower pays, protecting cash flow and debt service coverage if rates rise. Red Brick Equity targets deals where the debt structure is appropriate to the business plan duration and where debt service coverage provides meaningful cushion above the lender's required minimums.

Loan-to-Value and Debt Service Coverage

LTV on most Red Brick Equity deals falls in the 60-75% range, toward the higher end when a building carries strong in-place cash flow. The debt service coverage ratio, or DSCR, measures how many times over the property's NOI covers its annual debt service. Lenders typically require a minimum DSCR of 1.20-1.25x. Underwritings that show a DSCR barely above the lender minimum have little cushion for any operating variance.

Debt Metric	Conservative Range	Reason It Matters
LTV	60-70%	Higher equity cushion protects against value decline
DSCR (stabilized)	1.30x or higher	Operating variance room before cash flow goes negative
Debt type	Fixed-rate or rate-capped bridge	Eliminates or limits interest rate risk
Loan term vs. hold period	Loan term matches or exceeds projected hold	Avoids forced refinance risk mid-hold

Return Projections and Sensitivity Analysis

Reading the Waterfall

The return projections in a syndication offering show what the LP receives across a range of scenarios. Understanding the waterfall structure helps you interpret those numbers accurately. In a typical 80/20 structure, LPs receive 80% of profits above a return threshold, with the GP receiving 20% as the promote. The promote is the mechanism by which the GP's economic interests are aligned with the LP's: if the deal does not perform, the GP earns no promote.

Investors should look at what the underwriting shows in a downside scenario, not just a base case. A well-constructed sensitivity table shows returns at flat rents and a higher exit cap rate, not just the optimistic base case. If the downside scenario still produces a positive MOIC and no loss of investor capital, that is a deal underwritten with appropriate conservatism.

IRR vs. Equity Multiple

IRR is a function of both total return and timing. A deal that returns capital quickly produces a higher IRR than one that holds the same total return over a longer period. Equity multiple, or MOIC, captures the total return regardless of timing and is a cleaner measure of how much wealth was created per dollar invested. A 5-year deal targeting a 2x equity multiple and 15-20% IRR is the kind of profile Red Brick Equity builds its underwriting toward.

Frequently Asked Questions

How do I know if a sponsor's underwriting is too aggressive?

The clearest red flags are rent growth assumptions above 5% annually, exit cap rate compression built into the base case, renovation budgets with no contingency and no comparable track record behind them, and operating expense ratios materially below market. Any single one of these warrants questions. Multiple in the same underwriting suggest the return projections are more hope than analysis.

What is the most important number in a multifamily underwriting?

The exit cap rate assumption is probably the single most influential variable in a value-add deal. A difference of 50 basis points in the assumed exit cap rate can move the projected IRR by several points. Ask the sponsor what their base case exit cap rate is, and ask whether they have run sensitivity analysis at a higher exit cap rate. The answer tells you a lot about how disciplined they are.

How should I evaluate the renovation budget?

Renovation budgets are estimates that shift as projects progress, and the right level of budget detail varies by deal depending on asset condition and what can realistically be assessed at underwriting. The key questions are whether a contingency is built in, whether the sponsor has a realistic sense of costs for that market and asset type, and whether they have a track record of executing within budget on comparable past deals. Ask what the per-unit scope covers at a high level and what actual-versus-projected cost variance looked like on prior renovations. Red Brick Equity prioritizes conservative, realistic budgeting over a fixed templated process, because conditions change and what is known before closing is rarely the full picture. A sponsor who can walk you through completed projects with cost outcomes is more credible than one who has never done a comparable renovation in that market before.

Does the debt structure change what I should expect in distributions?

Yes. Deals using bridge financing often have interest-only periods at the start, which can mean higher early cash flow than a fully amortizing loan. But floating-rate bridge debt introduces rate risk that can compress cash flow if rates rise. Fixed-rate agency debt is more predictable throughout the hold. Understanding the debt structure helps you interpret the distribution schedule more accurately.

What should I ask about the exit strategy?

Ask what the underwriting assumes for exit, what the sponsor's track record is on prior exits relative to projections, and what happens if the market does not support a sale at the assumed timeline. A responsible GP has a clear plan for multiple exit scenarios, including a hold-and-refinance path if the sale market is unfavorable at the projected exit date.