@Chris Mason is correct, however you can JV with a partner and get the funds that way, or friends and family can contribute but you can not and should not raise funds is increments as that is unethical and unlawful (unless does properly and legally)

So if you only provided a PO Box for mailing the payment, you would not want to start any eviction (unlawful detainer) proceedings immediately after the 3 days expired because you would need to allow ample time to determine if any payments were still in the mail.  

Ideally, I would like to give her 30 days to move out and skip the whole trial, unlawful detainer, eviction, loss of S8 voucher business.Maybe I can persuade her to give me a 30 day notice instead.

Business Account funding (SP/DBA):Is there anything unlawful about funding my SP/DBA (non-retirement) Business Account from my personal funds?

Ironically, doing so PROTECTS them from being evicted for other reasons because they have an affirmative defense that they are being unlawfully evicted for non-payment, since the eviction proceeding was not implemented until AFTER the tenant stopped paying.I wonder aloud if this is the beginning of the end for the private housing industry, where it just gets folded into all of the other "human rights" people are apparently entitled to.

"blanket discrimination against felons"I think these ordinances will be deemed unlawful or overturned or changed and watered down to a point that they don't have any real teeth to the ordinance.A felon is not a federally protected class.Blanket is the key word you used which would imply SWEEPING discrimination which would be almost impossible to prove.A landlord would simply find another reason not to rent to them.Just like a contract there are always more loopholes to use if you don't want to do something.

This includes disorderly conduct, public urination, unlawful possession or use of a controlled substance and so on.

I've issued the 5 day pay or quit notice required by my state and have filed the unlawful detainer. 

Does one still have to file an unlawful detainer, or can one get a writ of execution immediately?

Here in California, an eviction (Unlawful Detainer) does not show up on court records for about 3 months, making it possible for jerks to find another place to live in the meantime, but have no fear, they will probably be evicted again and get caught the next time.