A restricted free agent can be signed by another team unless they are tendered by the team they currently play for. An offer can be extended to them and if their current team fails to match said offer within a week the team that loses the player can be given compensation depending on what the tender was.
Now on to the RFAs.
DT Christo Bilukidi
Bilukidi had only three tackles this season and went on IR fairly early. I don't think the Ravens are going to tender him.
S Will Hill
Hill had a good season this year and is worth bringing back. I could see him getting a second-round tender if a deal can't be reached.
K Justin Tucker
I don't see him getting tendered. Because he's one of the best placekickers in the game, if not the best, and I think that the Ravens will re-sign him on a four-year $16 million deal.
CB/S Anthony Levine
Levine was part of a revolving door in the secondary. That's not going to draw a tender.