William Mongillo

Monarch Investment & Management Group

Owner/Manager

Original Join Date: 2026

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Contact

PO Box 90327
Sioux Falls, SD 57109

605.336.7756

Resources

National Apartment Association

NAA Open Door

RPM Careers

SD Housing & Development Authority

Our Members

Our members are residential rental property owners, property management owners and staff and vendor/suppliers throughout South Dakota.

Association Management Software

Membership & Account Access

Is Your Company a Member?

If you are an employee of an SDMHA member company, we invite you to set up an online account to:

Access the Member Directory
Register for Events
Register for Classes
View & Pay Invoices

Create an Account

Applying for Membership?

The members of SDMHA invite and encourage you to join! By working together, we can achieve our mission to maintain and enhance our industry as a whole.

All memberships are company based and individuals cannot join SDMHA.

View Membership Information