ALWAYS hope for the best but plan for the worst. 

If so, what criteria would you recommend for sorting? 

Blocking tenants cars, chatting it up in the driveway, slamming van doors, just sort of growing out of hand.

Because of this treatment in the CARES act, the multifamily industry weathered the worst of the pandemic.History tells us that during recessions, multifamily housing production contracts moderately, rent declines are short lived, and vacancies only increase briefly and by modest amounts.

Am I forced to just try and block off parking with some sort of cone and tape or what can I do to deter individuals for parking illegally?

In a C or D area, then a pay by the week sort of place..

The deal needs to work with your worst case scenario exit strategy.

In Excel you can sort it by asking price. 

See what sort of deal you can get.

If you mean "pick one strategy" and go with it, that would be one of the worst mistakes you could make.