In my area (near the beach) its mostly families and they want cabanas, baby items, chairs, coolers etc that we do not provide but I have a local vendor that delivers and picks up these items and charges a few dollars per day for each item, and give me a 20% referral. 

When I used to have RE Broker in my title ( I still have the license just dont practice) I would get folks pinging me about Vegas about once a quarter or so and I would hand those leads to my Daughter  she made some pretty awesome connections from a few of those folks that bought multi million dollar homes..

We also have a bank account at a smaller Chicago community bank, but there technology isn't as good to be honest.I think @Jonathan Greene's main point is don't step over dollars to pick up pennies. 

Every little fee adds up to big dollars. 

You could get a broker dealer but expect to pay 5-10% in commissions for every dollar raised.

It is possible, but you have to put in the work; driving for dollars, mailer campaigns, cold calling, building lists, etc.  

DealMachine is a powerful tool for real estate investors, especially for finding off-market deals through driving for dollars.

Rent is already in line with the market on all 3 properties and we have a few hundred dollars of cash flow.

It is a $3.99 for the tenant to use, but they take their rent money to a nearby 7-eleven, Dollar Store or Ace and present a barcode/number that you'd send to them.

But if you have a self-directed IRA or 401k, keep this strategy in mind, as it could potentially save you hundreds of thousands of dollars in taxes.