The hire completes a search launched last year following a new asset allocation approval.
The plans launched a search in February due to the contract expiration of their incumbent.
The authority issued an RFQ in February after previously hiring its incumbent in 2018.
The city is seeking a firm to provide services for its two investment funds.
David Baron and Michael Baron have been named co-presidents of Baron Capital as Linda Martinson will step down in June.
The outgoing director has been with the plan since 2014.
The plan moved the assets to its passive core real estate manager.
The county issued an RFP in October seeking services for its Section 115 OPEB and Pension Trusts.
The deferred compensation plan issued an intent to award notice last month after issuing an RFP in November.
The deferred compensation plan rehired its incumbent bundled provider to conclude a search launched last year.