60-Second Answer: What a Due Diligence Lawyer Actually Does

1. Reads the contract and the riders. Investor contracts carry purpose-built riders the generic Multiboard doesn’t cover. 1031 language, assignment rights, financing outs, LLC substitution.
2. Scrubs the pro-forma. Every line of projected revenue and expense gets pressure-tested against reality: actual leases, actual tax bills, actual utility history, actual repair logs.
3. Runs full title, PIN, and zoning. What looks like a 6-unit on paper might be a legal 4-unit on the zoning map. That delta lives or dies in due diligence.
4. Pulls leases and estoppels. Tenants often live in the building on month-to-month arrangements, side deals with the seller, or rent amounts different from what the rent roll shows.
5. Coordinates LLC formation and financing. Most buy-and-hold investors close in a single-purpose LLC. I set the LLC up and work with your lender so funding doesn’t stall at closing.

The Full Due Diligence Checklist

Here’s what I actually run on a typical investor acquisition. Not every item applies to every deal, but the checklist is a good map of where the money and risk live.

Contract and Deal Structure

• Read the purchase contract line by line. Investor deals need investor-specific language.
• Assignment rights. Can the contract be assigned to an LLC at closing, or does assignment require seller consent?
• Financing contingency. Is there one, and is it specific enough to actually protect the buyer?
• 1031 exchange language if applicable. The intermediary needs to be named and the deadlines have to line up with the closing schedule.
• Earnest money release terms. At what point does earnest money go hard?
• Inspection period and due diligence deadline. These are negotiated separately from the standard attorney review window.

Title and Survey

• Full title commitment review. Every Schedule B exception gets read and, when necessary, objected to.
• Chain of title. Who owned this property before, and how did they take title?
• Recorded easements, restrictions, and covenants. The ones that matter get pulled and read.
• Survey review. Encroachments, setback violations, demolition-order risk.
• PIN verification. The property index numbers on the contract have to match the property described in the deed and taxed in the assessor’s record.

Pro-Forma Scrub

• Compare projected revenue against actual rent roll and actual leases.
• Pressure-test expenses against three years of tax returns or operating statements.
• Check property tax projection against actual assessor records and any pending reassessment.
• Check insurance estimate against actual quotes, not seller’s legacy premium.
• Review capex assumptions against inspection findings and building age.
• Validate vacancy and collection assumptions against market and unit history.

Tenants and Leases

• Pull every existing lease. Read the terms, the rent amount, and any side agreements.
• Request and review tenant estoppel certificates for any non-residential or stabilized tenant.
• Cross-check rent roll against deposit records. Are security deposits actually being held somewhere?
• Flag any month-to-month or unwritten arrangements. These become the new owner’s problem at closing.
• For Chicago buildings, check RLTO compliance on every lease.

Zoning and Code

• Pull the zoning designation and verify the property’s current use is a legal conforming use.
• Check for open permits, code violations, or outstanding orders.
• Verify legal unit count. What’s marketed as a 6-flat might be zoned for 4.
• Check for pending zoning changes or TIF designations that affect the investment thesis.

Environmental and Physical

• Phase I environmental if commercial or multi-family over a certain threshold.
• Coordinate with the inspector on building systems and deferred maintenance.
• Review the inspector’s report alongside the pro-forma. Any capex the pro-forma didn’t assume needs to move the deal price.

Entity and Closing Logistics

• Set up the LLC or holding entity for the acquisition.
• Coordinate with the lender on LLC name, operating agreement, and EIN.
• Prepare closing documents and run closing as attorney-title agent when appropriate.
• Record deed and any ancillary documents.

What Gets Missed When Due Diligence Is Rushed

I see investors try to compress due diligence to close fast. Here’s what that actually costs.

What Gets Missed	Typical Dollar Impact
Wrong legal unit count (marketed as 6, zoned as 4)	Loss of 33% of projected revenue, cap rate collapses
Pro-forma uses stale property tax bill; reassessment hits next year	$8,000 to $80,000 annual expense gap
Missed Schedule B title exception (easement, restriction, pending litigation)	$10,000 to $500,000 depending on the issue
Side-deal tenant arrangement not disclosed on rent roll	Lost rent plus eviction cost to correct
LLC not formed before contract; assignment refused at closing	Buyer closes personally, loses liability protection
1031 intermediary not engaged in time; exchange fails	Full tax on the capital gain from the relinquished property
Running due diligence with an attorney familiar with investor deals	$2,000 retainer for deals under $1M, quoted flat for larger

Investor Due Diligence Is Not the Same as Residential Attorney Review

Residential attorney review is the 5-business-day window under the Multiboard 7.0 contract. It’s short, structured, and mostly about inspection and tax proration. Due diligence on an investment property is a different animal.

Dimension	Residential Attorney Review	Investor Due Diligence
Length	5 business days	15 to 45 days, negotiated
Source of the right	Paragraph 11 of Multiboard 7.0	Purpose-built contract language
Primary focus	Inspection, disclosure, title	Pro-forma, leases, zoning, title, entity
Typical fee structure	$500 flat buy-side	$2,000 retainer or quoted flat
Who drafts the contract language	Brokers use Multiboard preprinted form	Attorney drafts or heavily modifies

If you’re buying a single-family rental with standard financing through a traditional realtor, attorney review may be enough. If you’re running value-add multifamily, commercial, or any deal where the economics depend on verified in-place cash flow, you need the full due diligence treatment.

1031 Exchanges and Due Diligence Coordination

If you’re buying as the replacement property in a 1031 exchange, due diligence has to finish inside the exchange timeline. 45 days to identify, 180 days total to close, measured from the closing of your relinquished property. Both clocks are hard. Missing either one collapses the exchange and makes the entire gain taxable.

When I’m your due diligence attorney on a 1031 replacement, I sequence the investigation backward from the closing deadline. If due diligence raises deal-killing issues, we need enough time to re-identify a different property inside the 45-day window. Clients who call after the 30-day mark have already lost optionality.

Why Have Me Run Your Due Diligence

• Investor-focused practice. I close enough investor deals that the checklist above is muscle memory. My regular clients are buy-and-hold landlords, flippers, and small-syndicator operators.
• Attorney-title agent. I can run the title work and represent you at the same time. One office, one handoff fewer.
• In court four-plus days a week. I see what breaks. I’ve handled the litigation that follows bad acquisitions. Keeps the due diligence checklist current.
• Refundable retainer. Unused hours are refunded at the end of the engagement. You pay for work done, not the retainer as a fee.
• Coverage across Illinois. Chicago, collar counties, Peoria. I close investor deals wherever the assets are.
• Licensed since 2015. ARDC #6311917. Verify at iardc.org.

Frequently Asked Questions

How much does a due diligence lawyer cost in Illinois?

For investor deals under $1M of capital deployed, a $2,000 retainer billed hourly covers the typical full due diligence cycle plus closing. Unused retainer is refunded. Deals over $1M are quoted flat at engagement.

What’s the difference between attorney review and due diligence?

Attorney review is the 5-business-day window under the Multiboard 7.0 residential contract. Due diligence is the 15-to-45-day investigation phase on investor and commercial contracts. Different scope, different deliverable, different fee.

Can I just use a title company and skip the attorney?

Title companies clear title. They don’t read leases, scrub pro-formas, verify zoning, or draft LLC documents. If the deal only turns on title, a title company is enough. If the deal turns on cash flow, you need the full investigation.

How long does due diligence typically take?

Single-asset residential investor deals: 15 to 21 days. Small multifamily: 21 to 30 days. Commercial or value-add deals with tenants and complex zoning: 30 to 45 days. Timeline is negotiated into the contract.

What if due diligence finds a deal-killer?

If the contract has a due diligence contingency, the buyer terminates and earnest money is refunded. If the issue is fixable, I negotiate a price reduction or credit. Which path is right depends on the issue and your deal thesis.

Do you help set up the LLC too?

Yes. LLC formation, operating agreement, EIN, and lender coordination are included in the engagement for investor acquisitions. If the deal doesn’t close, the LLC still belongs to you.

Do you handle 1031 exchanges?

Yes. I coordinate with qualified intermediaries and sequence due diligence backward from the 45-day identification and 180-day closing deadlines. I do not serve as the qualified intermediary. That has to be a separate, independent party.

What if the deal is over $1M in capital?

Deals over $1M are quoted flat at engagement based on structure and scope. I give you the number before I take a retainer. Larger deals typically run $5,000 to $25,000 flat depending on complexity.