I always tee up the conversation with prospective tenant that in accepting the invitation they will need to make payment at the site and consent to the screening which will include a soft credit check.

Essentially, the upside is a bet on SF real estate continuing to rise - a good bet over the last 30 years.Cons of keeping: (1) unreasonable, tenant-skewed rent control laws - master tenants can bring in up to 2 subtenants per bedroom without landlord consent; rent increases of only 1-2% per year max; just-cause eviction law - hard to evict except for very bad behavior, so tenants essentially have a life-estate as long as they pay the rent; if you evict with owner move-in, it "taints" the building for 10 years limiting the option to condo convert, etc.; (2) the building is (10%?)

It states that the legislative exemption "shall be a matter of right except in the following situations and under the following circumstances, and none other, to wit:(1) where litigation involves emergency relief and irreparable damage;(2) where such attorney has previously been granted continuances for the same case for a period greater than one hundred eighty days; or(3) in a criminal case where the client is incarcerated unless the defendant shall give his written consent to the continuance.The good news is, he's not going to be able to get another continuance down the road. 

I might also add a line to the lease that states that no modifications are to be made to the property without prior written consent.

It also establishes the relationship between the optionor and optionee, the guy who gives you the option still owns the property, they'll have to give consent to rezone/replat/etc in some form or another. 

Then you consent to a rescore and your FICO should be fixed. 

No amended returns would be required as it is granted automatic consent.

They sent me their own drafted lease agreement saying it needed to add sections to indicate my consent allowing Airbnb rentals adding protection that I won't be able to terminate the lease using Airbnb and sublet short-term rentals as a breach of contract, I guess it's a reasonable concern for them. 

Have you considered master leasing the property, and then, with the consent of the owner, making the property a STR? 

WILL pick up the phone during normal business hours and answer questions, even if it is just to say "we can't give out that information without employee consent (if they even work here) ".