Unfortunately, Adobe officially discontinued all Multiple Master fonts in when it shifted to OpenType. Support was finally removed from Creative Suite in CS2 (2005) . Today, you won’t find Adobe Sans MM on Adobe Fonts (formerly Typekit).
Since you can't download Adobe Sans MM, you’ll need a high-quality alternative that is actually licensed for use. Adobe recommends two primary replacements that share the same design DNA: need a font adobe sans mm | Community Adobe Sans Mm Font Family Free Download
Legally, no clear license exists. Practically, you risk font substitution and rendering glitches. Use a modern variable font instead. no clear license exists. Practically