This is a common name and the following may refer to one or more persons:

Appears to be IDed as an "organizer" with the National Capital Immigration Coalition at this page. That CSPAN "vignette" (ID: 192294) discussed May 1's "National Day of Civic Action for Immigrants".

The September 1998 article "INS Raids Violate Immigrant Human Rights" by Marnie Brady ( link) contains this:

In the D.C. metropolitan area the DC Immigrant Coalition on Immigration and Welfare Rights (DCIC) documents incidents of raids by interviewing eye-witnesses and affected families. On the local level, the Coalition aims to centralize information on enforcement operations in the D.C. area in order to assess trends in enforcement and the scope of the problem. As a member of the National Raids Task Force, the Coalition shares and develops 'resistance strategies with other local coalitions from across the country.

"The Coalition creates spaces for people to relate the terrifying experience of immigration raids, and raises consciousness on what people should do, or not do, during a raid through street theatre, press work and church teach-ins.," according to Jessica Alvarez, coordinator of the Latino Leadership Institute.

...DCIC with CASA de Maryland in Montgomery County, formed a taskforce last February to follow-up on interviews and to develop a report they submitted to the Department of Justice on Maryland enforcement operations...

IDed as "Jessica Alvarez, Latino Leadership Institute Coordinator, Council of Latino Agencies" here

The October 16, 1999 Washington Post article "33 Illegal Workers Arrested at Pentagon" IDs her as "Jessica Alvarez, of the Council of Latino Agencies" ( link).