Cryptocurrency is still a bit of a wild card. Even though it can be converted it into cash fairly readily, its value remains quite volatile. As a result, co-ops scrutinizing purchase applications continue to be reluctant to count crypto towards a prospective buyer's liquid assets.
However, as crypto becomes more popular as an investment asset and lenders begin to accept cryptocurrency as a liquid asset, some boards will consider crypto as a liquid asset. Considering crypto as a liquid asset will increase the pool of potential buyers for high end coops. It may also increase the value of coops relative to condos which, until now, have been the only game in town for the cybercurrency wealthy.
Whether a coop will consider crypto a liquid asset and at what value will depend on the individual board and will absolutely require proper documentation to prove its clear trail, a breakdown of the crypto's worth in cash, and ability for it to be easily liquidated into cash.