There are a lot of multi family properties in Charles village but they will fairly expensive and probably cash flow poorly by my standards.

For example:For a commercial lease, can I use my standard lease agreement with just a few changes?

This way you can use your standard residential lease unaltered to manage their residing at the property and have an additional commercial agreement for them using some space on the property for a commercial use.

I do screen heavily, but fear that with less expensive properties it will be difficult to find "quality" applicants that can pass screening unless I greatly lower standards.  

@Sheena Lee My tenants do payroll deduction or deposit at a kiosk...I've never had a problem with issuing the account numbers...My bank card just got cancelled because my Amazon Prime membership renewed and the bank didn't recognize it.

Is this different from standard renting because technically it is part of the home and does not have a separate address?

I would write down all the costs and deduct their down payment and ask myself would I like to have the building back next year at that price?  

That will increase your W-2 wage, but you also get a deduction at a personal level.

In most places using the standard REALTOR form is not only a violation of law, it's also not smart... with the contract constantly referring to the broker(s) involved and whatnot.

As you know, the Pittsburgh standard treatment that tenants get here is having a thick lease thrown at them by a property manager or landlord who looks at their watch and sighs in irritation if the tenant should have the temerity to want to actually read what they're signing.