Let me see if I understand this correctly. You have an Association for your section (lets call it Association 1) of the development and a master Association (lets call it Association 2).
You have one household where one spouse is serving in Association 1 and the other spouse is serving in Association 2.
If this understanding is correct then I don't see a conflict of interest.
To me, it's no different than if the master Association Board was composed of one member from each sub-association board (which does occur in many ares that have more than one Association). Now, I can understand how, depending on how the Associations are ran, this can give a perception of unfairness and should be avoided when possible. However, I don't see it as a conflict of interest.
BTW: So we are all on the same page, a
Conflict Of Interest is defined as:
1) A real or apparent conflict between one's professional or official duties and one's private interests.
2) A situation where one duty conflicts with another -- for example, if an attorney were to represent both parties in a divorce proceeding.