I can agree with saying that this will cause a thinning of the herd so to speak though if it gets much worse.

I know and do understand Covid-19 has most likely caused this and I understand that and want to be understanding  but want to understand my rights.  

If your future tenants are MTM or the end of their lease that may cause some worry.

And I think the Coronavirus/COVID-19 is exactly the kind of catalyst that will cause us to start looking at declining rents for the first time in years.What I think will happen is what happens in every recession, namely that a lot of people will be forced to either move home or double/triple up (get roommates, or more roommates than they had), which will reduce demand.It's possible I'm wrong, we could (eventually) get inflation and maybe rents will keep rising.

but don't you think that after fixing up the property and expenses like contractor or painters the price will be almost the same cause I don't know much about fixing and I think I need a contractor?

IF she fails to pay on that date, proceed with your normal process.If she asks to pay late again next month, do the same.Verbal agreements are going to cause a lot of Landlords a lot of headaches over the next couple months. 

One would think the 20+ trillion in debt would cause a depression but they keep printing money and so that isn't an issue (not to the media and most people anyways).I'm hoping this experience will cause more goods to be made in America = more jobs. 

I’m saying without cause other than value had plummeted. 

I know where there is a good deal on a 4 plex 3 of the Units have Tenants living in them, but my question is there any way that i can get financing for it without a Hard Money lender or having to live in one of the units for about 10% to 15% down cause everywhere i checked i been getting 25% down

Yes, clerical details and bill payments is about 90% of the work and can cause disasters if not done right.Going back 25 years, all bills are paper bills, comes monthly with payment envelopes.