Screening for Corporate Housing?

[Kevin Phu]

I have a SFR listed for rent and someone contacted me about it and I'm not sure if it's real or if it is, how to qualify them. They claim to be from a "well established corporate housing firm from Dallas" looking to sign 1-2 year leases for units in my market. They also said their website is "under construction". I responded back asking for their company name and if they had any questions. Does this sound legit to you? Does anyone have experience renting to corporate tenants? If they are legit, how would I even set a criteria for them?