What is a Homeowner Association?
Regenesis.net uses the term "homeowner association" and "HOA" in a generic sense although some states use the terms for specific forms of housing. As here, an HOA is comprised of two or more homeowners that belong to a mandatory membership organization for the maintenance of commonly owned real estate and improvements. Size-wise, it can range from a simple duplex up to a huge development with thousands of detached homes, condominiums and townhouses that maintain marinas, golf courses and other extensive recreational facilities.

A "neighborhood association" is a voluntary membership organization that deals with social, political, zoning, crime and does not maintain commonly owned property. Some neighborhood associations, unfortunately, call themselves "homeowner associations" which is confusing the issue. (So stop doing that...we're confused enough already).

Sometimes the HOA legal framework varies even though the association's responsibilities remain essentially the same. For example, property ownership rights are different in a co-op, a condominium and a townhouse. (See our Glossary for definitions.) But in each case, maintenance responsibilities can be very similar. Terminology for these organizations varies not only according to legal structure but also by state and country. Here are some of the titles by which they are described:

Title

Describes

Association of Unit Owners all HOAs
HOA - Homeowners Association all HOAs
Condominium, Condo or Condo Association condominium
CA - Community Association all HOAs
CID - Common Interest Development (California) all HOAs
Co-op, Cooperative cooperatives
Cohousing condominium
POA - Property Owners Association all HOAs
Planned Community non-condo HOA
PUD - Planned Unit Development all HOAs
Syndicate of Co-Ownership (Canada) condominium
Strata (Canada) condominium
The functions of HOAs vary according to type, location and custom. Here are several great HOA resources: An Introduction to Community Association Living and Community Matters-What You Should Know Before You Buy produced by Community Associations Institute.
Clear? Good. Now maybe you can explain it to me. This can be one of the most confusing topics you ever run across.