His unit got more attention and inquiries, but funny enough, the renter he ended up signing had found his original free listing weeks earlier and only called back because the timing was right.

How can I be sure she will stick with a lease she signed.  

Are the leases even valid, if they are not signed by you or your property manager? 

I was told from a rep that if I could get someone to sign a lease agreement for about $3,200 - $3,600 per unit, I would qualify.

You can do things like request updated tenant information, new signed leases that kick in at close of escrow, rekey or get key copies, estoppel agreements (outlining the deposits held by the selling owner),  etc.  

For my investor-sellers, I ask if they want to sign up front not to send them offers under a certain price or terms like seller financing or open-assignable.

I totally do not want this, I have other obligations and things I need to do.Right now she is complaining about a new tenant I just signed, a single younger man who is in a studio apartment.   

Instead of acting quickly, he went into the office on Monday to make cold calls, not realizing how important those extra 24 hours could be.By the time he arrived for his appointment on Tuesday, the seller had already signed a contract with another investor on Monday.

I'd be down to go there on Sunday morning as I have not signed up for the workshops

If its your primary residence be ready to sign a PG and jump through a few extra hoops with your lender.