My mother and stepfather have a rental building.

Come to find out, one of the offers we did not accept came in the name of their elderly mother at about 30% below asking.

I recently purchased two condos with my mother and sister.  

There were two other people sitting at the table and they are Polish, so they were speaking to each other in their Mother tongue.

All I saw were mothers with their kids playing out front. 

My mother has no intention of moving.

As Gordon Gecko says in Wallstreet 2..".The mother of all evil is over leveraging and speculation.

Im planning to invest in a house to flip, having as an investors, myself, a friend and her mother, should i open a corporation to purchase the house?  

Look at it this way: if it is something you would not want done to your mother or sister, maybe it would not be appropriate for you to do to others.There are honest ways to make money in RE and people do it every day.

It was a mother and son who i would consider an ideal candidate for tenant.