I also get a decent number of leads in the northwest and western suburbs that don't make sense for the typical fix & flip buyer but might make a lot of sense for a buy & hold investor.  

Is this typical for small local banks?

But keep in mind, banks typically work with you if you come into hard times and miss a payment. 

Typically, companies don't just give out the contact information of their clients, so it seems out of the ordinary for a place like that to do this.

@vladimir valladares,Or you can  just tack on the typical Agent commission to the sales price and run it through the brokerage office.No problem there. consider it what it is, an off market transaction.

Typically, at least one months salary.

Avoid people with poor pay history on utility companies (power, gas phone).

Get a NAR contract from state your in and use that for the agreement - best place to get one is find an investor friendly agent on BP and they typically will provide one for free or a small fee

how long does it typically take?

@Bob Bowling if the lot rent is 200 and the home rent is 300 to get to 500 monthly total rent, minus typical expenses (33% of $300 for this example) this gives a 1982 mobile home a net of about $200 per month or $2,400 per year at a 10% CAP gives each home a value of 24K using an income based approach, which is overpaying - this home can only be sold for about 5K in the real world.