You might be able to get away with "smoke free," but stating "curry free" does seem to target Indian tenants and that could be discriminatory. 

I think your target market would depend on where your SFR is...

My friend and I are experimenting targeting owners who don't speak English as their native language.  

Understood, the requirements are pretty straightforward, however i think you determining what "decent cap rate" would be is the key to narrowing down targets for your potential agent. 

Remember, you have a target on your back.  

But if you pay attention to comps, use similar type and quality materials for the neighborhood, and implement the design in an ordered and deliberate way, most of your target audience will respond positively.

I stared thinking about my liability due to my other business and realized that the assets of my business could be one BIG target for money hungry attorneys.

Last month I targeted out of state absentee owners in Queens, New York.

This is a business asset, it's like Best Buy shooting shop lifters or Target having them kneecapped by a biker gang.

This will at least begin to give you an idea of the gross revenue you could expect, which would then lead you to your potential numbers for your target properties.As others have mentioned, putting a team in place is essential.