Fun fact I learned this week: Chicago landlords are required to pay for pest management services to get rid of bed bugs in a tenant's apartment, according to the Chicago Department of Public Health - "Preventing Bed Bugs" lease addendum; "What are my landlord's responsibilities under this ordinance?

I am no expert on this.You will have to go up the food chain to get your answer if the STR folks at the desk can't help you. 

The builder is in poor health, he's not very mobile and has in home medical care (he can still drive and go to job sites, but is he is very physically limited).

It's very solid information about your personal financial health and perfect for someone just starting out.

No bank wants to provide a commercial loan for the building+ costs without a general contractor submitting plans and 30% down (reasoning is that food is high-risk and the business has no food history).

@Joe SplitrockAnd COVID at this point is strictly a "health issue" not political at all.

How does the plumber get money to buy his family food?

It does not preclude the Seller from evicting based on other issues like non-renewal, non-compliance, health and safety risk, and so forth. 

A monthly allowance for every American who makes under a certain threshold—not slot just enough to potentially cover the basics—give all renters rent vouchers that ensure landlords always get paid, nationwide law that evictions can only be for a good reason like criminal activity, risks to safety, damage to the property, national right to counsel for eviction defendants, universal health care, universal college tuition, and make it easier to buy a home.I don’t understand how anyone can be against  those things?

You’ll save on property taxes, state income taxes, insurance, maintenance, purchase price, gas, food, etc...but if you don’t plan to occupy it but rather to rent it out, tell everyone that over and over and don’t sign the paperwork saying it’s going to be your primary.