Is Marcadis Singer (now Marcadis Law Firm) legit -- and how should I handle them?

Yes -- Marcadis Singer, P.A. is a legitimate, active debt-collection law firm based in Tampa, Florida, not a scam. First, a naming point that causes real confusion: in 2026 the firm was renamed Marcadis Law Firm, P.A. It is the same Tampa firm with the same attorneys -- only the name changed -- so if you were sued a year or two ago as "Marcadis Singer" and now see "Marcadis Law Firm," or vice versa, that is not an impostor; match the rest of the details and treat it as the same office. The firm handles consumer collections -- primarily credit-card and other unsecured accounts -- for creditors, and the way a collection law firm collects is by filing lawsuits in Florida county and circuit courts and, after a judgment, pursuing garnishment, levy, and court-ordered debtor examinations. That means the single biggest risk here is a court summons and complaint, not just a phone call, so the reassuring flip side of "it's legit" is that you should act on your rights rather than ignore it, because a law firm can actually sue. Here is the key legal point: an attorney or law firm that regularly collects consumer debts is still a "debt collector" under the federal Fair Debt Collection Practices Act (FDCPA) -- lawyers are not exempt -- so you keep every consumer protection. Send a written validation request within 30 days demanding the amount and the original creditor, and don't admit the debt on a call. Confirm what kind of account this is: an unsecured consumer credit-card balance is negotiable and settle-able, but the firm also handles commercial collections and insurance/auto subrogation, which follow a different process -- so make sure you're dealing with the consumer side. If the plaintiff is a debt buyer rather than your original creditor, demand the chain of title -- the bill of sale, the assignment, and account-level records -- proving that entity owns YOUR specific account and that the balance is correct. Check the statute of limitations, because an old account may already be time-barred -- and remember a single payment or a written promise to pay can restart the clock, so don't reset a time-barred debt by accident; if it's too old to sue on, raise a time-barred defense. Above all, if you're served with a summons, never ignore it: file a written answer by the deadline, because a default judgment is what enables wage garnishment, a bank levy, or a lien. A genuinely-owed unsecured balance, once validated and within the statute of limitations, can often be settled in writing -- get any agreement in writing before you pay, and note that a forgiven balance over $600 can trigger a 1099-C. Finally, watch for impostor red flags: anyone demanding payment by gift cards, wire, or crypto, or threatening arrest, is running a scam and is not this firm.