Without a clear board majority behind him, he decided against trying to hang on and fight a move to oust him.
With their resignations, Lincoln achieved its board majority of four.
Such a board majority would also be required in some cases where a company newly adopted a super-voting share structure.
Tenant leaders criticized the mayor and the board majority after the vote yesterday.
The changes are expected to pass since both the board majority and minority leaders voiced support for the additional funding.
In 2009, the board majority resisted the program's broader, countywide implementation.
However, in an interview she said she would support the Mayor's move toward gaining control over a board majority.
The company also said the Feb. 29 deadline could have been extended and did not figure in the board majority's decision.
The board majority reasoned that outside charity was acceptable in this case because it expanded an existing fall class.
Ms. Gross had argued that she acted with the support of a board majority.