I'm considering engaging with this business and am seeking assurance regarding their legitimacy.

However, once you began stating that the signature was forged and you would be taking legal action, the agents would understandably not engage in that. 

Get on plane and engage all 5 senses though. 10 years from now, it probably  won't really matter.

From google: “The Fair Housing Act (FHA) does not apply to certain types of rentals, including: Owner-occupied buildings: If the building has four or fewer units and is owned by the person who lives there Single-family homes: If the owner rents or sells the home without using a real estate agent, and they own no more than three homes Religious organizations: If the property is only available to members of the organization's religion Private clubs: If the property is only available to members of the club Senior housing: If the property is designated for people who are at least 55 years old Even if a property is exempt from the FHA, it must still comply with the law's ban on discriminatory statements, notices, or advertising.

I’m in the process of evaluating the purchase of a laundromat and looking to engage with some folks to ask some questions. 

I can't believe anyone would stoop so low as to engage in reverse trolling on these forums.

This platform is designed to greatly assist you in networking and gaining knowledge about real estate.

Any suggestions I should consider before engaging them?

There’s a cool breakdown here if you ever want to explore gaming design inspiration.

Why are you looking to buy such a big house to rent, the numbers usually won't work unless you go nuts on the design.