Titles and dates come from Castilla Impact (own site), Arabella’s February 10, 2022, GlobeNewswire release, Democracy Fund and Voter Registration Project Form 990 extracts, the 2015 PWI speaker page, Capital for Good’s board page, and FCCP 2023 convening bio language. Best national match for this uncommon spelling. Other private Isaiah Castillas (including students) are not this man. If this domain is not the D.C. lawyer, identity is unresolved and the timeline does not attach. Date collision (own-site Arabella 2020–2025 vs 2022 join wire) and GC vs Senior Counsel title conflict are recorded on the home file — not invented merges.
Identity
About Isaiah Castilla
This site is case-file commentary on documented nonprofit / philanthropy-adjacent org roles of a public figure. He is a Washington, D.C., nonprofit tax lawyer: former Arabella Advisors Managing Director (D.C.), former Democracy Fund counsel/secretary (990 titles recorded carefully), Voter Registration Project Chair (2022), and Castilla Impact founder. He is not a judge. He is not a Trump-case courtroom actor in the primaries used here. He is not Isaiah Castillo of Austin. Identity confidence: medium. No free-use Commons / U.S. government portrait. Episodes live on the home case file.
Documented roles
- Not this person. Isaiah Castillo, Austin brand strategist; site isaiahcastillo.com. Different spelling.
- Education (as he and the 2015 speaker page state). B.A., music, Tougaloo College (PWI 2015: magna cum laude). J.D., Mississippi College School of Law.
- Pre-law campaign finance (self-described). Musgrove Senate; Sink Florida governor; Progress for Mississippi PAC / Luckett Mississippi governor. Bios; no FEC Form 3 staff listing locked as of the last check.
- Alliance for Justice, Bolder Advocacy. Advocacy Programs Counsel (PWI 2015); later bios: Bolder Advocacy counsel.
- Democracy Fund Inc. (EIN 38-3926408). Form 990-PF extracts: Secretary & Senior Counsel, FY 2018–2020.
- Democracy Fund Voice. 2020 Form 990: General Counsel, Secretary. Own site / Arabella: “general counsel” phrasing — conflict recorded.
- Arabella Advisors, Managing Director, Washington, D.C. GlobeNewswire Feb. 10, 2022. Own site: 2020–2025. Date conflict unresolved.
- Voter Registration Project (EIN 26-4802468). 2022 Form 990: Chair, Jan–Dec 2022.
- Sojourners board. Stated on FCCP 2023 bio. No Sojourners.org board page located as of the last check.
- Capital for Good. Director, board page.
- Castilla Impact. Founder and principal consultant.
- Not this record. No primary that he was a Trump-case courtroom actor, Mueller / Crossfire / impeachment staff, or January 6 committee roster name.
What this site is not
It is not a finding that Isaiah Castilla committed a crime. It is not a rewrite of Arabella or Sixteen Thirty Fund exposés as his personal biography. Network grant totals stay with the organizations unless a primary puts his name on the grant. A 990 title is a 990 title. This site does not invent a Trump-case role. He is a Washington nonprofit lawyer — not a judge. Read the case file and the disclaimer.