Providing relocation assistance to tenants, for example, if I want to sell the property or move back in - this can range from one month's rent to thousands of dollars (e.g tenant has a disability, minor children, elderly it will cost you more), depending on the city.

We go above and beyond when it comes to protection.. starting with insurance coverage, sings in the listing and in the property that there is no guard on duty (as silly as that sounds), putting extra locking device high enough so youngsters can't reach, an alarm/beep system to alert them that door opens for those with small children (or elderly) so they cannot wander out in the backyard with no one noticing and risk drowning.

and I gotta tell you it's really fun to get to see the impact of my legacy gifts while I'm still around to watch my children prosper.  

They are nearing retirement and have children in school.

If we adopt this mentality, then all OB/GYN doctors should be female and have children.

Many of the recipients are single mothers who actually want to find stable housing for themselves and their children so initially they are looking for the best house they can find and it is only when time is running out and their voucher is expiring (Yes that is a thing) that they begin lowering their standards and will settle for a cheaply put together home. 

Multi-family properties typically draw transient tenants, singles or couples without children, who stay only 1–2 years and cause moderate to serious damages.

Quote from @Andre Bertoncin: Hi, im 34, married w/ 2 young children.

One report I saw said that something like 80% of the ADUs built were to house parents/children of the homeowner and were not being rented out.

Hello - I'd like to cater towards families with children for my STR.