If you want to know how to build a mother in law apartment, there are several steps to understand. Here are some tips and tricks to help you create a mother in law apartment that’ll make you or your partner’s parent happier than ever. Figure Out the Legal Implications Your first step on how to build a mother in law apartment will be finding out the legal process you will go through when you want to build your own home (or add on). There are many local laws that you need to follow in order to be legally allowed to …