After weighing a run for mayor, Boston developer Tom O’Brien has opted not to enter the race. 
The founding partner of HYM Investment Group and former planning chief of the Boston Redevelopment Authority, O’Brien released a statement Monday saying he had considered running for mayor because he cares “deeply” about the city.
“After many conversations with people I know, trust and admire, I’ve decided not to pursue a political candidacy at this time,” O’Brien said in the statement. “Instead, I will continue my work with The HYM Investment Group and my engagement in Boston’s charitable and civic life.”
On March 10, The Boston Globe first reported O’Brien was considering running to challenge…