Buying a package of rental properties is not the same exercise as buying one house several times. You are acquiring a set of existing tenancies, existing obligations, and existing problems, and the seller knows which ones they are while you do not.
The good news is that portfolio diligence is largely a documentation exercise, and the documents will tell you most of what you need if you ask for the right ones and read them properly.
Quick Answer
Evaluate a portfolio on four fronts: the rent roll and leases, the actual financials, the physical condition of every unit, and the legal and title position. Do not rely on a seller’s pro forma. And know that in Virginia, security deposit obligations follow the property — under § 55.1-1213, deposits transfer on purchase, and the buyer becomes responsible for returning them regardless of whether the seller actually hands the money over.
The Security Deposit Trap
Start here, because it is the item most commonly missed and it costs real money.
Virginia addresses transfer of deposits upon purchase in § 55.1-1213, and the practical effect is that the deposit obligation runs with the property. Separately, § 55.1-1226 provides that the holder of the landlord’s interest at the time the tenancy terminates — however that interest was acquired — is bound and must return any security deposit duly owed to the tenant, whether or not the deposit was actually transferred with the interest, and regardless of any contractual agreement between the original landlord and their successor.
Read that again if you are buying. If the seller keeps the deposits and you did not get a credit at closing, you still owe the tenants their money. A side agreement with the seller does not protect you against the tenant.
What to do:
- Obtain a complete schedule of deposits held, by unit and by tenant
- Reconcile it against the leases — not just the seller’s summary
- Take the deposits as a credit at closing, in writing, in the settlement statement
- Obtain the deposit deduction records the landlord is required to maintain
- Confirm any prepaid rent separately, since it is treated differently from a deposit
The Rent Roll and Lease Audit
The rent roll is a summary. The leases are the truth. Read them.
Build a table covering every unit:
| Field | Why it matters |
|---|---|
| Current rent | The starting point — and often below market |
| Lease start and end date | Reveals turnover concentration |
| Month-to-month status | Flexibility, but also instability |
| Deposit held | Your inherited obligation |
| Prepaid rent | Cash you will not receive |
| Payment history | The single best predictor of future performance |
| Arrears balance | Frequently uncollectible; discount it |
| Concessions given | Effective rent may be below stated rent |
| Pets and pet terms | Including any assistance animals |
| Utilities responsibility | Determines who pays what |
| Unusual clauses | Options to renew at fixed rent, unusual notice terms, side agreements |
Things that should stop you:
- Below-market rents across the portfolio. Often framed as upside. It is only upside if you can actually raise rents, and that depends on lease terms, notice requirements, tenant tolerance, and your willingness to accept turnover. Model it conservatively.
- Turnover concentration. If eight of ten leases expire in the same month, you have a vacancy event, not a rent roll. Check the distribution.
- Undocumented side agreements. “We let them keep the dog” or “they do the yard for a rent reduction” are real obligations that do not appear anywhere.
- Missing leases. If the seller cannot produce a signed lease for a unit, you do not know the terms you are buying.
- Chronic arrears. A tenant who has been late every month for two years will be late for you too.
Estoppel certificates. For a portfolio of any size, ask each tenant to confirm in writing their rent, deposit, lease dates, and any agreements or claims. This is standard practice in commercial transactions and underused in small residential portfolios. It is the only way to verify the seller’s representations against the people actually living there.
The Financials
Insist on actuals, not a pro forma. A seller’s pro forma is a marketing document showing what the property could theoretically produce for a perfect operator in a good year.
Ask for and reconcile:
- Trailing twelve months of income and expenses, ideally twenty-four for seasonality
- Bank statements to verify deposits actually match reported income
- Tax returns or Schedule E for the properties, which sellers report conservatively for reasons that work in your favor here
- Actual tax bills for each parcel — not estimates, and remembering assessments may reset after sale
- Actual insurance quotes in your own name, not the seller’s premium, which may reflect a portfolio discount you will not get
- Utility bills for any owner-paid utilities
- Maintenance invoices — the detail matters more than the total
- HOA assessments and any special assessments pending
Where sellers understate expenses: vacancy, capital reserves (frequently omitted entirely), management (often zero because the seller self-manages), maintenance (understated where the seller does their own work), and turnover costs.
Rebuild the financials with your cost structure. If you will use professional management, that is a real line item. If the seller has been doing repairs personally, price them at contractor rates. Our guide to capital reserve planning covers how to size the reserve properly, which is the line most often missing.
A telling exercise: compare the seller’s reported maintenance spend against the age of the buildings. Low maintenance on old properties usually means deferred maintenance, not efficiency.
Physical Condition
Inspect every unit. Not a sample. A portfolio seller will often propose showing you two or three representative units, and the ones you are not shown are rarely the good ones.
Build a component schedule for each property covering roof, HVAC, water heater, electrical panel, plumbing, windows, and exterior, with age and condition. Convert that into a dollar figure and a timeline — that is your near-term capital requirement, and it belongs in your offer.
Richmond-specific items to check across a portfolio:
- Crawl space moisture, endemic in this region and often present across an entire portfolio if the same owner neglected it everywhere
- Pre-1978 construction, which brings lead disclosure obligations and lead-safe work practice costs on renovation — see our lead paint guide
- Well and septic on county properties, including whether any are alternative systems with ongoing obligations — see our well and septic guide
- Unpermitted work — converted basements, added units, enclosed porches. Check permit records against what you see.
- Tree and storm exposure on wooded lots
- Aging HVAC across multiple properties, which can concentrate a large capital need into a short window
That last point deserves emphasis. Portfolios assembled at the same time often have systems installed at the same time, which means they fail at the same time. Check whether your capital requirements are spread out or stacked.
Legal and Title
- Title search on every parcel, with liens, judgments, and easements identified
- Verify legal use. A property operated as three units must be permitted as three units. Unpermitted density is a serious problem you inherit.
- Zoning and rental inspection status — is any property in a rental inspection district, and are inspections current? See our guide to rental inspection programs.
- HOA governing documents for any association-governed property, including rental caps that could prevent you leasing a unit. See our HOA guide.
- Pending litigation or disputes with any tenant
- Outstanding code violations or notices from any locality
- Fair housing exposure — ask about complaints and review the seller’s screening criteria and advertising for anything problematic you would be inheriting the consequences of
Portfolio-Level Questions
Beyond individual assets, assess the shape of the thing:
- Geographic concentration. All properties on one street is efficient to manage and concentrates your risk in one submarket.
- Product consistency. A uniform portfolio is far easier to operate than a scattered mix of unit types.
- Tenant profile consistency and what it implies for turnover and management intensity.
- Management transition. Who manages it now, what happens at closing, and how residents will be notified.
- Scale versus your capacity. Ten doors is a different operation from three, and self-management may stop being realistic.
- Financing. Portfolio and commercial lending differs from residential — terms, guarantees, and reserve requirements included.
A Diligence Checklist
- Signed leases for every unit, with all addenda
- Complete rent roll reconciled to the leases
- Security deposit schedule and deduction records, with a closing credit
- Estoppel certificates from every tenant
- Trailing 12 to 24 months of actual income and expenses
- Bank statements and tax returns or Schedule E
- Actual tax bills per parcel
- Insurance quotes in your name
- Maintenance invoices and any warranties
- Inspection of every unit, plus a component schedule
- Title search per parcel
- Permit and code violation history
- HOA documents where applicable
- Utility account details and any owner-paid utilities
- Written disclosure of any side agreements with tenants
Frequently Asked Questions
Who is responsible for security deposits when a rental is sold in Virginia?
Deposit obligations follow the property. The holder of the landlord’s interest when the tenancy ends must return deposits duly owed, whether or not the deposits were actually transferred and regardless of any agreement between seller and buyer. Take them as a closing credit.
Should I trust a seller’s pro forma?
No. Ask for trailing actuals, bank statements, and tax filings, then rebuild the financials with your own cost structure including management and capital reserves.
Do I need to inspect every unit?
Yes. Sellers offering a representative sample are rarely showing you the worst ones.
What is an estoppel certificate?
A written confirmation from each tenant of their rent, deposit, lease dates, and any agreements or claims. It verifies the seller’s representations against the people actually living there.
Are below-market rents a good thing?
Only if you can realistically raise them. That depends on lease terms, notice requirements, and your tolerance for turnover. Model it conservatively rather than treating it as automatic upside.
What expenses do sellers usually understate?
Vacancy, capital reserves, management, maintenance where the seller does their own work, and turnover costs.
Can I inherit fair housing liability?
Ask about complaints and review screening criteria and advertising during diligence. Problematic practices are worth knowing about before you take over.
What if a property is operated with more units than it is permitted for?
That is a significant problem you would inherit. Verify permitted use against actual use for every property.
How is portfolio financing different?
Portfolio and commercial lending generally carries different rates, terms, guarantee requirements, and reserve expectations than residential financing. Talk to a lender early.
Underwrite It Properly Before You Commit
The two numbers that most often break a portfolio purchase are achievable rent and the real capital requirement. Both can be established before closing rather than discovered after.
- Get a free rental analysis on properties you are evaluating
- Explore our real estate investing resources
- See our property management services and pricing
- Read more investor guides in the Learning Center
- Contact our team to talk through a deal
This article is general information and is not legal, tax, or investment advice. Portfolio acquisitions carry significant legal and financial complexity — engage a Virginia attorney and a qualified accountant.
