Now it's less than 2% with timely paying tenants.Also, at least in our market, lower rents do not equal better tenants.  

Is it better to keep leases and applications indefinitely in case I am shopped by HUD for equal housing investigations? 

Also, equally as important this same method should be used with maintenance.  

My firm currently has a 15k minimum fee, which is about equal to your two points. 

Best to avoid having a security deposit that equals rent, as it is more likely that a tenant will try to get you to use the security deposit as last month's rent, as in @John Thedford 's situation.

It may be true but time equals money and who says the next person will see any more value in the property than the other people who have offered. 

Each individual is a co-owner of an equal share of the property that can be sold separately from the other owner's share.  

The portion/fractional percentage of the property that is acquired by the party completing a 1031 Exchange must have a value equal to or greater than his/her sale property.

Some parts are equal to investing in Radio Shack.

Rent for the first full month of occupancy;Rent for the rent for the last full month of occupancy calculated at the same rate as the first month;A Security Deposit equal to the first month's rent...; andPurchase and installation cost for a key and lock.IREM Chapter 4 recommends that our property management colleagues perform a thorough evaluation of all leasing and marketing materials.