It’s perfectly legal and, more importantly, legitimate to do so. They let it lapse for a reason. It’s worth noting that almost every registrar is required to provide the prior owner with a redemption period (even if the domain has expired) in order to reclaim it.
Owners are unlikely to be involved if they do not replenish within the redemption period (which is more expensive than a simple regeneration).
However, there is a market for domain name owners with similar names. If yourdomain.net expires, for example, you could contact the owner of yourdomain.com or yourdomain.org to see if they are interested in purchasing it.
It is not illegal to purchase a domain name after it has expired. The trick is that most of the time when a domain is allowed to expire, the owner has lost interest in it or does not have someone to manage it.
As a result, it may be more profitable to purchase only expired domains that rank well for specific keywords and monetize them yourself.
Yes, You can buy and sell any domain if the domain is available and the previous trademark is expired.
You heard the news “Man buys Google.com for $12“. This incident happened because the google domain license expired for some time.
The conclusion is that You can buy any domain if available and the Domain provider can sell any available domain or resell the domain whose license expired.
Before buying, any domain remembers these things.
Do a proper research for the domain name.
Background of the domain.
For more details about the domain and its pricing you can checkout on Here