Mary Alonso

Mary Alonso


Languages Spoken:

  • English
  • Spanish
  • 608-436-2231
  • 608-531-2519 ext 3831
  • 608-449-6795 ext Spanish
  • 608-756-4196
  • 2715 Kennedy Rd
    Janesville, WI 53545
Contact Me


Welcome to the number one place to search for properties on the web! Whether you are searching for your new home or looking for one of the most innovative listing sites available to showcase your property - you need look no further. My personal knowledge of the local Real Estate market is combined with the power of the Century 21 brand. Let me assist you in finding your dream home, in a neighborhood that is right for you, and in the price range you want. Or if you are interested in selling a property, I also have the expertise to help you get the fastest sale




  • Realtor

Professional Background

Thank you for taking time out to visit my website.  Please know that any time you have questions about real estate just ask me at or call or text me at 608-436-2231.  I would be happy to help and always appreciate your business.  I've been a licensed Wisconsin  realtor since 2006.  I  serve Southern Wisconsin but would be happy to help you locate a realtor in your area.  Just ask me.  

En Espanol maque el numero 608-449-6795


Why choose us?  Because we are #1 at what we do!  This isn't just a sales pitch, check out this youtube video below and see for yourself.




I have my Bachelor of Science Degree from the Universit of Wisconsin-Stout in Hotel and Restaurant Management.  I also studied Real Estate and took my test in Chicago in 2006.  I passed the first time with flying colors! 

 Speaking of flying, his is my son Zach on his first flight training to be a pilot.

Personal Interests


When I'm not working on real estate projects you can probably find me at one of the many ice arenas, soccer fields, or lacrosse fields around the state because my kids are in a lot of different sports.  In MY free time I enjoy sailing, boating, kayaking, fishing, or just hanging out with my friends.  If you are not from Janesville don't worry there are many things to do and see in the area.  Make sure in the summer you catch the free show put on at Traxler Park every weekend by the Aqua Jays, National Water Ski Champions.  If you are looking for a good restaurant try this site...

 Isn't this the truth!




Buying and Selling


Just ask me and I'll tell you I have a number of professional memberships to include:  National Realtors Association, Wisconsin Realtors Association and Rock Green Realtors Association.  Your home is possibly one of the biggest assets that you will ever have.  Whether it is time to maximize the value for that asset through the sale of your home, or whether you are making a new purchase just ask me.  Now is a great time to buy or sell a home.

 If you are a buyer I can help you choose the right home or property for your needs and will guide you toward making an informed real estate decision.  I pride myself in being able to give all my clients important local information based on years of enjoying living in Southern Wisconsin.

If you are a seller I can help price and put your home or property on the market for a quick sale.  If you would like to find out the value of your home I will research the value and provide you with a complimentary comprehensive report...again, just ask me.



Ask me, I can do just about anything.  If I can't help you I will help you find the right person for the job.  I'm grateful for referrals and I'd have to say my specialty is to match people relocating in or out of the area with the perfect  home or realtor.  My sucess in real estate is dependent on referrals from friends like you.  Do you know of someone considering buying or selling?  If so, please let that person know of my services.  Ask me, I'm just a click or phone call away at or call/text me at 608-436-2231...Ask for Mary Alonso!

En Espanol maque el numero 608-449-6795


Contemplating your next move?  Ask for Mary Alonso!



Free Money

Free Money!  Do I have your attention now?  If you are a first time home buyer a lot of cities have first time home buying classes you can take.  Upon completion they may give you a grant toward your down payment.  In Janesville you can get up to $2,500 toward down payment assistance.  Just ask me and I'd be happy to help you find some free money.

Enthusiasm is priceless-and also free...I promise to give you as much of this as you should be a headache free  process.  No free headaches here!





Contact Me
Interested in buying or selling a home? Contact me to get a professional estimate. Just ask me! or call 608-436-2231!





Did you know

Did you know that unless you have a buyer's agency contract with your realtor they are obligated to be working for the seller?  It is very important to know this when negotiating on your new home or investment. Only if you have a Buyer's Agency Contract with your realtor are they working in your best interest.  Just ask me, I'd love to sign you up.

Did you know that I can show you any home listed on the MLS in Wisconsin?  It does NOT have to be listed by Century 21 Affiliated it can be listed by any company.

Did you know that all of our listings have their own youtube video?  Pretty Cool!

Did you know that you can purchase a Home Warranty for your home?  Just ask me, I would love to send you free information about it.

Did you know that with the large number of other agencies in Rock County our office sells 40% of the listings?  Nobody else comes close.

Did you know that realtors work on 100% commision?  When we list a home generally we split half of the broker fees with the realtor and company who brings the buyer, the other half we split with our company for helping us with first class marketing and tools that help keep us #1.

Did you know that there is a new FHA initiative to allow boomerang buyers (people who had lost their homes to foreclosure, bankruptcy, etc.) purchase and finance a home more quickly?  More information on this program can be found at

Did you know I would love it if you would share my website and any useful information with your friends and family?  It is 100% true!




Easter Seals / United Way

Janesville, Wisconsin's Park Place offers a great place to work, live, and play. Located in south central Wisconsin, Janesville has over 2,300 acres of parkland, 20 acres of botanical gardens, 25+ miles of paved bike trail, boat launches along the Rock River, 2 public golf courses, ball fields, tennis courts, and more.

Founded in 1836, Janesville also boasts 9 historic districts and 20 percent of Wisconsin's buildings that are listed on the National Register are found in Janesville. Janesville residents have bene committed to excellence in commerce, education, recreation, and culture.

Are you considering moving to the Janesville, Wisconsin or a surrounding community? If so, your search for a REALTOR is over. Our office has a team of over 40 professional REALTORS able to assist you in the purchase of a new home or the sale of your current property. Janesville agents live and work in Rock County and can provide you with a level of service and knowledge of the market that is unsurpassed.

According to the South Central Wisconsin Multiple Listing Service, Century 21 Affiliated - Janesville is the #1 real estate office in homes sold in Janesville and Rock County. In 2012 and 2013, the office was recognized as a Double Centurion Award Winning office by Century 21.

Century 21 Affiliated believes in giving back. Our office supports Easter Seals of Wisconsin, United Way Blackhawk Region, ECHO, and Salvation Army.

Easter Seals has been helping individuals with disabilities and special needs, and their families, live better lives for nearly 90 years. From child development centers to physical rehabilitation and job training for people with disabilities, Easter Seals offers a variety of services to help people with disabilities address life’s challenges and achieve personal goals.

Century 21 Affiliated has events every year to raise money and awareness.  I also had the pleasure once again to help the United Way by helping to raise money at an auction we have every year.  Our Broker, Randy Borman promised us he would shave his head if we reached our goal.  Sure enough we did and boy did Randy look different.



Personal Background

About me, I found my home in Janesville 17 years ago and live here with my husband Edgar, my son Zach who is now already 22 and my daughter Zoe who is 17 and was just a baby when we moved here.  Previous to that I lived in Madison for 5 years, Fitchburg, Chicago, Schaumburg, Lake Geneva, Menomonie, Green Lake, Wautoma, Wild Rose, and yes Plainfield.  See I pretty much covered all of Wisconsin and Northern Illiniois before I even became a realtor.  Ha ha...laugh now because that was a joke.

I went to high school in Green Lake where I worked at Alfred's, my parent's Supper Club.  I have over 15 years in Restauant Management and Administration.  This does not include the years I worked at the Supper Club or the 4 years I spent getting my Bachlor's Degree.  I majored in Hotel and Restaurant Management.  In addition to my real estate license I also have my Wisconsin Restaurant Manager License, Wisconsin Sanitation License, I am a certified TIPS Trainer, have taken additional classes to include:  Wisconsin Cont. Education-Contract /Negotiation, Time Management, Communication & Management, Effective Supervision, Decision Making & Problem Soving, Mentors 2000, Creative Management, Mentors 2000, and Personnel Development.

I was the Food Service Administrator fo the Universiy of Wisconsin Madison Housing where our yearly revnue was $6,605,000 serving over 50,000 guests per week.  One week per summer I work as the Catering Manager for Zaug's where we serve food for the EAA in which we had over $1,000,000 in weekly revenue.  I was Director of Restaurnts at the Sharaton Internation - O'Hare where I managed 5 outlets including 2 full service restaurants, 2 bars, and room service.  I also was the Food and Beverage Manager at 676 N Michigan Ave. Chicago when it was owned by both the Hyatt and the Omni Chicago Hotel.

I've been interested in real estate since a young age but didn't get my Wisconsin real estate license until 2006.  If you want an agent who knows the market choose me.  My success is driven by my expertise in market ananlysis.  Pinpointing the most competitive price for my clients using recent sales and up-to-the minute changes in market conditions.  My marketing and advertising programs are second to none and I'm dedicated to bringing the highest price for your home in the shortest amount of time.  Once we have a chance to meet in person you'll see that I am your best choice..Just Ask Anyone!