Do the rockets need to make a qualifying offer for Landry before July 1st?

So the rockets can match any offer from other teams.

 

http://members.cox.net/lmcoon/salarycap.htm

In order to make their free agent a restricted free agent, a team must submit a qualifying offer to the player by June 30. The amount of the qualifying offer for players on rookie "scale" contracts is based on the player's draft position. The qualifying offer for all other players must be for 125% of the player's previous salary, or the player's minimum salary plus $175,000, whichever is greater. The qualifying offer must be for one season. A player can elect to accept his qualifying offer (the qualifying offer must be accepted by March 1) and play the following season under its terms. This is sometimes done in order to become an unrestricted free agent the following summer.

When another team wants to sign a restricted free agent, it signs the player to an offer sheet, the principal terms of which the original team is given seven days to match. The offer sheet must be for at least two seasons (not including option years). If the player's prior team also submitted a maximum qualifying offer, then the offer sheet must be for at least three seasons (not including option years). If the player's original team exercises its right of first refusal by matching the principal terms of the offer sheet, the player is then under contract to his original team. If the player's original team does not exercise its right of first refusal within seven days, the offer sheet becomes an official contract with the new team.