It isn't proper terminology to say that any member may 'chair' the meeting. Chair is short for Chairman, and Chairman implies that they are an elected Officer.
"the presiding officers' official place or station (usually in the center of the platform or stage, if there is one, is called "the chair. During meetings, whoever is presiding is said to be. "in the chair..." - Roberts Rules of Order
The Seargent at Arms title is a more appropriate designation for someone who is willing to help control the masses at a meeting. Yet, this also must be decided by a Board decision. As with any appointment, the Seargent at Arms is still subject to presiding Officer.
Any one of the Elected Officers can be designated to chair any meeting. However, the board has not done so. As elected President - Chief Officer and Senior Advisor, I will Chair the meeting until the Board votes otherwise.
The Board hasn't discussed possible candidates or actually officially vacated Eric's position as of yet. So, let's back up a bit and wait until the Board can confer about appointing someone to the position of Facilities Coordinator, which is an important topic before we start 'inviting' anyone to take a position.