Subject: Re: Asking for each of your takes
Is there a federal law similar to Michigan's "civil forfeiture"?

Yes. The govt (city? county? state?) gets a piece of the $$$ at sale for assets used in/by/for a criminal. Assets can be seized and sold by the govt.

the propriety of the state using eminent domain to take property, for the benefit of a private, for profit, corporation

Kelo vs City of New London

https://en.wikipedia.org/wiki/...