I am optimistic, but I'm also a realist.
I hope for the best, however I'm aware things could get much worse, as illustrated by Len in post #19. I think it's a good idea to bill something now, whatever the client can afford, instead of deferring everything. We have to assume some of these clients might be bankrupt in 2-3 months and not be able to afford to pay anything.
Most of my clients are well capitalized. However some own only single-family residential rentals. That is their niche. If their tenants stop paying and the mortgage company keeps collecting they might be in trouble.
50% now and 50% due July 15th seems to be equitable for both the client and I if the client is truly in dire straights.
Like dsocpa, I still have mortgage payments, payments for utilities, HOA dues, interest payments on loans, insurance, and grocery and essential costs. No one is cutting me a break there. Therefore, the solution must be equitable.