Before comparing individual companies, it helps to understand who is actually behind a “we buy houses Miami” offer. From there, HomeWise can present a cash offer in as little as an hour, without requiring an in-person walkthrough before the initial number. Offer speed: How quickly a homeowner can expect an initial cash offer. Most companies provide a no-obligation cash offer, so you can review it, compare it, and decide. Is it better to sell to a cash buyer or list with a real estate agent?