Here's the revised site...

Crossed out properties are residential types not being considered for purchase (at this time) by the County.

Not much parking, eh? I count less than 100 (90+/-) when just eliminating the 4 residential properties. I am sure this wouldn't be the final configuration, I just wanted to give an idea of the scale.

So working backwards and just assuming that you can provide 150 square feet of building area for every parking space to meet City Code, take 90x150 = 13,500... Both Mental Health (currently 14,400 sq.ft.) and Health (currently 18,000 sq.ft.) have indicated both a lack of space and parking. Sorry, neither one will fit nor should have ever been considered for this site!