One or two reposts of this elsewhere could cause you and your firm lots of trouble.Here are the illegal reasons to discriminate:colorrace• religion• sex• national origin• disability• familial statusLanguage is not on that list.  

there are Fair Housing categories/protected classes you need to steer clear of, such as familial status, disability, race, religion etc.  

I want to make sure you thoroughly understand this piece since you are going it alone.The Fair Housing Act prohibits discrimination against prospective tenants and current tenants on the basis of the following characteristics or "protected classes": race, color, religion, sex, national origin, disability, and familial status.

Here is the Seattle definition: “Discrimination” means any conduct, whether by single act or as part of a practice, the effect of which is to adversely affect or differentiate between or among individuals or groups of individuals, because of race, color, creed, religion, ancestry, national origin, age, sex, marital status, parental status, sexual orientation, gender identity, political ideology, honorably discharged veteran or military status, alternative source of income, participation in a Section 8 or other subsidy program, the presence of any disability, or the use of a service animal by a disabled person.

Since I am not discriminating against anyone for race, sex, or religion I do not see the legal issue.

As long as you arent denying them as a tenant based on their age, race, sex, sexual orientation, religion, disability status, and familial status.When I accept section 8 tenants I also make sure they pass the same credit and background check as all of my other tenants.

The FHA, to date, includes seven protected classes: race, color, religion, national origin, sex, disability, and familial status.

And since the military consists of families and all types of races and religions, etc., I don't see how you could be viewed as discriminating against any of the protected classes, by saying you only rent to members of the military.  

Every group is going to have bad apples, regardless of their race, religion, gender, socio-economic status, etc.  

I guess my question is this, can you decline an applicant based on a feeling as long as it's not based on race, religion, age, etc.