@Jeremy BenezraNot sure what a RUB is, but...If you have 2 units, say 2 adults each.

Lots of trade schools offer night classes for working adults and weekend classes.

The National Science Foundation did a study in the early `1990s that found 55% of adult Americans could not correctly answer "does the earth go around the sun or the sun around the earth, and how long does it take?".

Even if they are destined to move out of the nest in a year or two, they will want a say.Certainly you want to hang on to your adult prerogative to make decisions but you would be wise to at least consider what they have to say.Kids pick up on things adults often miss.

My neighbors told me there must have been 30 kids their and no adults.

A child, whether adult or adolescent did something stupid with their cards or identity. 

I would want every adult 18 or over named on the lease so that I could have a lease the binds all of those adults to the terms of the lease including rules, terms etc... asking to leave them off the lease is asking them to be exempt from your lease terms as well which doesn't protect you that much...

Make sure to have a parent (or other adult with consistent income) co-sign.

The adults also violate the code due to their very loud shouting.The police lieutenant I've been in contact with said that since the noise is caused by children, they don't want to enforce the code.

In this case, the property would be used for a meeting place and periodic overnight sleeping for some special needs young adults.