We offer proven expertise

We Troubleshoot Problems Effectively

We communicate clearly and cohesively

We oversee all aspects of operations

We manage properties successfully in your market

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What Makes Us Different


Joe Rosenbaum President

Joseph I. Rosenbaum is founder and President of Diversified Management Plus. Building upon his years of expertise in the field of commercial real estate, Mr. Rosenbaum excels at capitalizing opportunities for his clients.

Mr. Rosenbaum is founder and President of Madison Commercial Real Estate Services, a family of companies focused on tax, management and financial services for commercial property owners. Starting with its flagship division in June 1998, Madison Title, the first MCRES company, offered only title insurance and title-related services.

Since then, Mr. Rosenbaum has expanded Madison's scope of operations through subsidiaries, affiliates and joint ventures to offer a full suite of commercial real estate services, including LeaseProbe, Madison 1031, Madison SPECS, Real Diligence and DocProbe.

Additionally, Mr. Rosenbaum is President of Diversified Capital, Inc., a real estate holding company which owns and manages numerous commercial and residential properties in New Jersey, Pennsylvania, Virginia, Connecticut and Texas. He also founded Citybook Services Ltd., a satellite company based in Israel, offering back office support for companies around the world. Mr. Rosenbaum holds a Bachelor's degree and Master's degree from Beth Medrash Govoha College.

Judy Malin Director of Operations

Judy Malin is Director of Operations for Diversified Management Plus. She has over a dozen years of management experience, successfully administering multi million dollar projects. Mrs. Malin works closely with property owners, construction managers, services operators and vendors to plan and implement a successful property management strategy. She puts her management experience to work for DM Plus clients, in the operation, control and oversight of commercial properties. Mrs. Malin’s extensive experience and attentive customer service skills allow her to implement rapid response and successful solutions.


Our approach is to treat each property as if it were our own, and find every possible way to maximize the return on investment while minimizing the risks for each property owner. At Diversified Management Plus, we pursue every payment, scrutinize every expense, and challenge every potentially inflated cost with the same vigor and persistence that we would if we owned the property.

The Diversified Management Plus team brings decades of experience managing our own real estate portfolio to bear for our clients. This allows us to leverage and pass along to our clients the knowledge and skills we have spent decades cultivating.

Diversified Management Plus has the knowledge and experience to understand the inner workings of each property and help the property owner attain its highest potential value. We seamlessly integrate property management solutions with our clients' core business competencies. The result is a synergistic relationship providing property management services tailored to each client's portfolio or property specific requirements. Additionally, our services extend to include support for non-local property requiring management and representation.

Why People Prefer Us


A : Property owners who lack the time or expertise needed for day-to-day management of your commercial or residential real estate investment would benefit from having an expert property manager to help maximize the investment’s return. A property management company helps:

  • Maximize income;
  • Fill vacancies with the best possible tenants;
  • Maintain and keep a property in good condition, avoiding unnecessary repairs which can save money;
  • Track income and expenses to determine profitability;
  • Negotiate lease agreements;
  • Collect rent and track tenant deposits;
  • Comply with federal, state and local laws; and
  • Respond to tenant requests and deal with tenant’s problems.

A: It seems there is a new property management company starting out every day, trying to beat everyone else's prices. Our management fees are very competitive. We charge a fair fee for a tremendous service. We manage every property as if it were our own. When ALL expenses are considered, we are usually less expensive than most companies.

The ultimate cost of a property manager is determined by many things other than the fee charged. The efficiency and manner in which maintenance and tenant relationships are handled, and the attention to detail are just some of many areas in which we excel. We feel that our suite of services, systems, and expertise are good values at the fee structure we have established.

A: Yes. We believe communication is at the heart of every great relationship. We communicate with our clients regularly to keep them aware of all issues that arise. We contact our clients at reasonable times to discuss matters.

A: We understand that quality tenants are the key to a successful investment property.  That’s why our management approach is tenant-centric.  Tenants may phone, fax, or submit their requests to us online. After we receive a maintenance request, we contact the tenant and ask questions to determine the exact nature of the problem before sending a service technician. We then schedule the repair.  High priority items are usually attended to the same or next business day.

A: Yes. Tenants can contact us 24 hours a day and 6 days a week to respond to emergencies. We will then speak with the tenant to determine how to proceed.

“ Diversified Management Plus manages four buildings for us and they do an outstanding job. When a colleague requests a recommendation for a property management company, I direct them to DM+. There are very few groups or people that I will put my name behind, but I know that I can trust Diversified and their outstanding team.”
BRUCE STERN, Red River Asset Management, LLC
“ It has been a couple of years since we partnered with Diversified Management Plus, and we are extremely happy with the results. We recently acquired six new properties, and it goes without saying that Diversified Management Plus is managing all of our new properties.”