Many investors use LLCs for long-term rentals to enjoy asset protection, maintain a professional image, facilitate estate planning, and benefit from tax flexibility.

They find buyers and sellers, facilitate the transaction and get paid a commission.

Looking for the name of a bank or site that would facilitate the deal.

As @Wayne Brooks noted, unless you are experienced in helping to facilitate a short sale, your involvement is likely to muddy the waters rather than help.The fact that the mortgage payment is more than the current rent payment is irrelevant to you, unless you were looking to do the deal Subject 2.  

She facilitates appraisal, additional inspections, communicates with the lender and attorneys to make sure things are moving smoothly towards closing.Get a showing agent- someone to show all your listings, possibly help host some open houses, communicate with buyers and/or their agents, etc.Get a buyer's agent to take on all buyer leads.

This will be my second month of accepting payments which are facilitated through their website.  

They say they will work with a buyer's agent, but in this case "my" agent hasn't done anything to facilitate the deal.

So now that agent you thought you were hiring is actually just the name on the listing and someone else is facilitating your transactions.

May I ask you also about how to help streamline recordkeeping to facilitate soon to come Year End tax?

The credit that gets extended to facilitate these purchases should not be taken lightly.