Live Auctions • Signings • Collection Buying

Live Auctions, Private Signings, and Serious Collection Buying

OTIA helps collectors buy, sell, consign, and connect through live Whatnot auctions, athlete signings, memorabilia opportunities, and direct collection purchases.

Sell Your Collection View Signings Send Sell Sheet

Live Whatnot Auctions Fast-paced, trusted auctions featuring sports cards and memorabilia.

Private Athlete Signings Exclusive autograph opportunities and memorable collector experiences.

We Buy Collections No collection too big or too small. Singles, lots, vintage, modern, and memorabilia.

10% Finder’s Fee Refer a collection we purchase and you can earn 10% of the deal.

Live Whatnot Auctions

Private Signings

10% Finder’s Fee

All Sizes Collections Bought

Why collectors contact OTIA

Built for serious collectors, consignors, and referrals

Direct collection buying and fair evaluations
Private autograph signings and memorabilia opportunities
Strong relationships in the hobby and live auction space
Easy way to send photos, lists, and sell sheets
Referral opportunities when you bring us a collection

Start a Conversation Join the Team

What OTIA offers

A full-service sports card and memorabilia brand

Whether you are trying to sell a collection, consign strong items, submit a sell sheet, join a private signing, or watch the action live, OTIA is built to help collectors move with confidence.

Live Auctions

We go live on Whatnot and create exciting auction experiences for collectors looking for sports cards, memorabilia, and hobby opportunities.

Collection Buying

From one card to a full room of inventory, we evaluate and buy collections of all sizes with honest communication and fast follow-through.

Private Signings

We coordinate private autograph signings with athletes so collectors can secure meaningful pieces and exclusive memorabilia items.

Referral Program

If you refer a collection that OTIA ends up purchasing, you may qualify for a 10% finder’s fee. It is a simple way to turn hobby connections into opportunity.

Sell Your Collection

We buy sports card and memorabilia collections

Have a collection to sell? OTIA is actively buying sports cards, autographs, memorabilia, sealed product, vintage lots, modern inventory, and curated collections.

No collection too big or too small
Fast communication and serious evaluations
Send photos, spreadsheets, or sell sheets to start
Perfect for singles, full collections, estates, and dealer inventory

Get an Offer Send Sell Sheet

Finder’s Fee

Know someone looking to sell?

OTIA offers a 10% finder’s fee if we end up purchasing a collection you referred to us.

Refer collectors, dealers, estates, or families liquidating items
Great fit for hobby contacts, shop owners, breakers, and show connections
Simple referral process with real upside when a deal closes

Refer a Collection

Core services

How OTIA helps collectors and sellers

OTIA is more than just auctions. We create multiple ways for collectors to buy, sell, promote, and participate in the hobby.

On-Air Auction Talent

We build live, energetic auction experiences and are always interested in people who can connect with collectors on camera.

Sell Sheet Reviews

Have inventory organized in a spreadsheet or list? Send your sell sheets and we can review what makes sense for purchase or consignment.

Memorabilia Opportunities

From signed items to specialty pieces, we help collectors locate and secure quality memorabilia through trusted channels.

Collector Network

Through auctions, signings, and direct buying, OTIA stays connected to collectors, consignors, and sellers across the hobby.

Become an On-Air Personality

Want to be part of the OTIA live auction team?

We are looking for strong personalities who know how to engage an audience, move energy on camera, and help create exciting live auction experiences. If you have presence, hobby knowledge, or the drive to grow in the space, we want to hear from you.

View Opportunities

About OTIA

About Us

OC Sports Cards & Memorabilia in Brighton, MI - sports cards, Pokémon, TCG, sealed wax, singles, supplies, trade nights, and grading prep/submission help.

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Signings

Featured private signings

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January Trade Night

Sat, Jan 24 · 6:00 PM · OC Sports Cards

OC Sports Cards & Memorabilia is kicking off the year with a Trade Night made for collectors.

Michigan Wolverine Legends

Sat, Mar 21 · All day · OC Sports Cards Brighton, MI

Public Signing With David Terrell & Anthony Thomas