While you can't advertise the property by saying things like, No Children, or anything, you do have more leeway under Fair Housing rules than professionals like property managers or real estate agents.  

We plan on keeping it indefinitely and passing our property to our children.  

I want to move out in 5-6 years once I have children.

My wife is about to sit for her Real Estate license exam and we're both excited about what this industry has to offer.We have 3 children and really enjoy what this area of the country has to offer our family with the business and recreational aspects.

Also ask how many living and pre-deceased children they have. 

Marc,  Our lease states we cans show the property during the notice interval, and access by the landlord is authorized for showings and inspections.The first step is to visit the property to "preview" it for the marketing, and you can note any big issues that may delay occupancy, and even stress to the residents what they could be docked for.I always tell the residents to protect their valuables because its hard to track other people's children during showings, and the more they cooperate and the faster the house leases, the less time they have to tolerate showings.I've had perfect houses occupied the next day.I've had disasters that need  six weeks to prepare.With this effort and a mid-lease maintenance inspection, there are fewer surprises.

You might call someone who used pot a druggie or a drug addict, maybe do some research before you condemn something that has helped countless people, from cancer patients to children who suffer from seizures to everything in between.

I will buy each of the children a drum kit when they move in". 

Would you trust someone more that is watching your kids with a person that has children?

Although our plan is to raise our children downtown, I get your point it isnt always up to us!