Bill Borden is a CPA and Managing Director at Blackforest Advisors PLLC in Portsmouth, NH. The firm provides accounting, tax, and advisory services for small businesses, individuals, and not-for-profits, with work spanning tax preparation, bookkeeping, tax planning, assurance, and nonprofit tax services.

Blackforest Advisors advertises support for individual, nonprofit, partnership, and S-Corp tax returns, along with advisory services for organizations that need strategic accounting guidance. Source facts also note tax specialties for business returns, sole proprietors and gig economy workers, startups, and nonprofit clients.

The firm is based in Portsmouth, NH and is described in the supplied source material as currently accepting clients.