Well, I think its a risky thing, try to deal with the owner company directly. Opppps yaaaah, here we go, try to take the contract to the housing authority or the ministry of housing, they have a special department called: Contracts attestation. Also, ask for the following from the dealer: company commercial card, company establishment card and the contract between the company and the owner.
And I think in this case you'll be safe.
keep me updated if u need any help.

good luck