Sketch buyers W/ private money lender

[David Cruz]

Today I set up a time to sign a contract with a guy for a property we had been negotiating since Wednesday. He kept pushing the meeting back and then finally put me on the phone with his uncle, a supposed "realtor" who told me to email the contract so he could pass it by his private money lender for approval. The deal was supposed to be done today. He never mentioned this lender before and has me speaking to third parties now. I'm ok with the hard money, but I'm not okay with him being sketchy about the situation. Do you think he is a legit buyer? Maybe he is just trying to buy time in the deal? Any reason I should be concerned about him not being legit?