Some must be using PriceLabs because it’s so common. 

Common fees will include a set-up fee, a leasing fee for each turnover or a lease renewal fee, marking up maintenance, retaining late fees, and more.

Though my response might help others, common courtesy suggests you thank those who took the time to answer you.

I did some cold calling with it last year and got some solid leads.

Another common problem is poor due diligence—jumping into deals without verifying the borrower or collateral often leads to future regrets.I’ve also seen over-leveraged borrowers cause trouble, prioritizing other creditors over private lenders.

Providing a starter supply of items like laundry detergent, dryer sheets, and toiletries is common practice and works well for short stays.

@Ethan Borshansky, There was a brief period of time in the early 2000s when this type of "leasehold exchange" as described above was fairly common. 

I'd also recommend staying away from townhouses if you can but understand in some markets they are more common than others.

General Contractor - Look for someone experienced in renovating older structures common in Baltimore.

As a new investor, I made the common mistake of being too aggressive, starting with seven distressed units all at once.