"Manafort's indictment in DC includes a forfeiture claim against four properties, a life insurance policy, and accounts with two financial institutions — assets the government would seize if Manafort is convicted. In most criminal cases, the government doesn't take assets at the start, but the assets are subject to a pretrial restraining order that limits how they can be used."
https://www.buzzfeednews.com/amphtml/zoetillman/paul-manafort-would-like-access-to-his-money-back