Help & common questions
Practical answers to the questions we hear most. Not legal advice — confirm specifics with official sources.
- Frequently asked questions
- What the trust badges mean
- Why was my listing rejected?
- How listing review works
- How to avoid scams when renting
- Safe buying & selling tips
- How verification works
- Free vs commercial listings
- Reporting a listing
Frequently asked questions
Can visiting researchers post listings for free?
Yes. Personal listings from verified community members — researchers, fellows, students, and academic or government staff — are free. You can sign in with any email (including Gmail) and verify a separate eligible institutional email to qualify. Free personal posting covers a room you're subletting, your own moving-sale items, a free item, or a non-commercial community event. Businesses and landlords use a separate path.
Related: Free vs commercial guide · Post a listing
Who can use GuestResearcher.com?
It's built for visiting researchers, scholars, fellows, postbacs, students, and trainees near DC-area research campuses, plus the landlords and neighbors who host them. You don't have to be a researcher to browse, but community posting is for verified community members.
Related: How verification works · For landlords
Is GuestResearcher.com affiliated with NIST, NIH, FDA, UMB, or any agency?
No. GuestResearcher.com is an independent community resource and is not affiliated with, endorsed by, or operated by NIST, NIH, FDA, Walter Reed, the University of Maryland, GHI Washington, or any government agency. We link to official resources only as citations.
Related: Why we're independent
How are housing listings reviewed?
Housing offers, commercial posts, brand-new accounts, and anything our automated quality check flags get a quick human review before they publish. Reviewers look for missing details, off-platform payment language, Fair-Housing-safe wording, prohibited content, and obvious scams. Review is not a guarantee — always tour and verify before paying.
Related: How we review listings · How moderation works
Can landlords post?
Yes. Landlords, homeowners, property managers, and businesses can post housing, but commercial and landlord listings follow a separate path and are held for review before publishing. Payment processing is not enabled yet, so commercial listings are held as pending rather than charged.
Related: For landlords · Using the site as a landlord
Are demo listings real?
No. A few listings are clearly marked [DEMO] with a ribbon that says they are not real offers. They exist only so the pages aren't empty during the early alpha and will be archived before a wider launch. Never send money or arrange a visit for a demo listing.
Related: For alpha testers
How does verification work?
Your login and your community verification are separate. Sign in with whatever is convenient — Google or a personal email — then verify an eligible institutional email (.gov/.mil/.edu or an approved research organization) from your account. Verification adds a stronger community signal (eligible low-risk personal posts can publish faster) and shows a neutral 'Verified community member' badge. Signing in directly with a verified eligible email verifies you automatically. It's a community-eligibility check, not an identity or background check, and your institutional email is never shown publicly.
Related: How verification works
How do I report a suspicious listing?
Every listing has a Report control. Use it for scams, discriminatory or unsafe content, prohibited items, spam, or anything misleading. Reports are private — the person isn't told who flagged them — and go straight to moderators, who can request edits, remove the listing, or restrict the account. For anything urgent or dangerous, contact local authorities first.
Related: Avoiding rental scams · Trust & safety
What should I ask before renting a room or basement apartment?
Confirm the real total cost (rent, deposit, utilities, internet), the exact available-from and available-to dates, lease length and flexibility, who else lives in or has access to the space, and house rules. For basement and in-law units, also ask about a private entrance, natural light, ventilation, and any moisture or mold. Tour in person or by live video before paying anything.
Related: Questions before renting a basement · Roommate checklist
Can I sell furniture, bikes, or cars before leaving?
Yes. The marketplace is built for temporary stays — researchers are always arriving and leaving, so there's a steady stream of buyers. Start a few weeks early, post real photos and honest prices, meet buyers safely in public or with someone home, and keep payments traceable. Prohibited items aren't allowed.
Related: How to post a moving-sale listing · Selling furniture safely
Can I post a happy hour or newcomer meetup?
Yes. Community-organized, non-commercial events are welcome — a newcomer happy hour, coffee meetup, or hike. Include a real date and time and an approximate area; you can share the precise spot with attendees privately. Events are marked as community-organized and unofficial.
Related: Organizing a newcomer meetup · Post an event
Why are some listings pending review?
A listing is held as pending when it needs a quick human check — housing offers, commercial or landlord posts, brand-new accounts, or anything the automated quality check flags. It's how a small, trusted community stays safe, not a punishment. You can edit and resubmit a pending or rejected listing from My listings.
Related: How listing review works
What the trust badges mean
Some listings show small badges to give you helpful context. They’re a courtesy, not a verdict:
- Government/research email verified: The poster controlled a government/research email inbox (.gov/.mil or an approved research domain). It does not prove their identity, job, or that this listing is safe.
- University email verified: The poster controlled a university email inbox (.edu). University email is easier to obtain than government email, so treat it as a lighter signal — it does not prove identity, employment, ownership, or listing safety.
- Approved research-community email verified: The poster controlled an email at an approved research-community organization. It does not prove identity, employment, ownership, or listing safety.
- Manually verified: An admin manually verified this poster's eligibility. It does not prove identity, employment, ownership, or listing safety.
- Google account: The poster signed in with a Google account — a basic account-level signal. It is not institutional verification and does not vouch for the listing.
- Admin-reviewed listing: A moderator reviewed this listing before it was published.
- Auto-published listing: Published automatically because the poster is verified and the listing passed our automated checks — it was not individually reviewed by a moderator. Use the safety guidance and report anything off.
- New poster: This poster is new here. That's completely normal and not a warning.
- Repeat poster: This poster has had several listings approved here.
How listings go live:most verified, low-risk community posts publish automatically — we don’t hand-review every one. Listings are held for a moderator only when an automated risk check trips (off-platform payment language, Fair Housing wording, an exact address that conflicts with the chosen privacy, suspiciously low rent, missing required details) or the account/post type needs it (commercial/landlord, unverified housing offers, flagged accounts). Verifying an eligible .gov / .mil / .edu / approved email lets your low-risk posts — including housing — publish instantly.
Why was my listing rejected?
Listings are held or rejected to keep the community safe — it’s not personal. The most common reasons:
- Not enough detail — add a fuller description, location, and key specifics.
- No photos — add at least one real photo.
- Off-platform payment language — remove requests for wire transfers, gift cards, or crypto.
- Fair Housing language — describe the home, not who can live there (see Fair Housing).
- Prohibited item or service — see Prohibited listings.
- Looks like a duplicate, test, or scam.
Your listing’s status and the reviewer’s note appear under My listings. Fix the note and resubmit — it goes back into the queue. More on the process: how moderation works.
How listing review works
Verified community members’ low-risk personal listings usually publish right away. Housing offers, commercial/landlord posts, brand-new accounts, and anything our automated quality check flags go to a quick human review first. Review isn’t a punishment — it’s how a small, trusted community stays safe. Full details: how moderation works. Before you publish, run the real-listing checklist.
How to avoid scams when renting
- Tour the place in person or over live video before paying anything.
- Verify the person actually controls the property or item.
- Never pay by wire transfer, gift card, crypto, or a payment app to someone unverified.
- Don't send a deposit to 'hold' a place you haven't seen.
- Be suspicious of prices far below the local market.
- Keep conversations and payments on documented channels — get terms in writing.
- Walk away from anyone pressuring you to act immediately.
- Meet for marketplace handoffs in a busy public place, during the day.
- Trust your instincts — if it feels off, report it.
Full guidance: Trust & safety.
Safe buying & selling tips
- Meet for handoffs in a busy public place during the day; bring a friend if you can.
- Inspect items before paying; agree on price and condition up front.
- Prefer cash or a payment method you trust, completed in person.
- Don’t share your home address until you’ve agreed and you’re comfortable.
- Trust your instincts — if a deal feels off, walk away and report it.
What can’t be sold here: Prohibited listings.
How verification works
We verify that a member belongs to the research community using their institutional email domain. Approved domains (universities, research institutes, and government/academic organizations) can be auto-verified; others may be reviewed manually. Verification:
- Adds a stronger community signal so eligible low-risk personal posts can publish faster.
- Shows a neutral “Verified community member” badge — it does not mean we vouch for any listing.
- Never exposes your email publicly; contact details stay private by default.
Verification is a community-eligibility check, not an identity or background check. Always take the safety steps above regardless of badges.
Community posts vs commercial posts
Community posting for researchers, fellows, students, and government/academic community members. Verified community members may publish eligible low-risk posts faster; commercial, spammy, or high-risk posts may be limited or reviewed, and some posts are reviewed before appearing publicly.
Community posts
- Verified researchers, fellows, students & staff.
- Personal posts: your room, your stuff, your event.
- Eligible low-risk personal posts can publish immediately.
Commercial posts
- Landlords, property managers, realtors & businesses.
- Reviewed before appearing publicly.
- May be limited or reviewed to keep the community safe.
See also For landlords and how posting works.
Reporting a listing
Every listing has a Report control. Use it if you see a scam, discriminatory or unsafe content, a prohibited item, spam, or anything misleading. Reports go straight to our moderators, who can ask the owner for edits, remove the listing, or restrict an account.
- Reporting is private — the person you report isn’t told who flagged them.
- Add a short note about what you saw; it helps us act faster.
- For anything urgent or dangerous, contact local authorities (911 in the U.S.) first.
More on safety: Trust & safety.