Meet Our Team





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Jonathan Ortega

President/ Founder


Jonathan is the president and founder of Guaranteed Financial.  He started his career in the mortgage industry at the age of seventeen.  After holding several positions among three different companies, he eventually became a Senior Sales Manager at a large mortgage company.  At the age of twenty one, motivated by what he saw as inequities in the industry, he set out on the journey of creating a new type of Mortgage Company.  One that wasn’t solely focused on its bottom line and the “profit maximization” approach of the time, but rather a company that would embed itself into the communities it served.  A company that would leave a social impact. 

Now in its twelfth year of existence, Guaranteed Financial has maintained itself as a dependable and seamless source of residential financing for hundreds of families and borrowers and is now a staple in its headquartered town of Berwyn, Illinois.  Together with his team of experienced and entrepreneurial-spirited mortgage professionals, Guaranteed Financial is on pace to grow substantially in the years to come.

Jonathan holds both a bachelor’s degree in Business Management as well as an MBA in Finance from DePaul University in Chicago. Jonathan recently served on the board of the MBA Association at DePaul University.  Jonathan was also a member of a Honduras Microfinance Brigade team whose mission was to bring basic financial structures to villages across the impoverished country.  On his free time, Jonathan enjoys woodworking, feeding his koi fish, and traveling the world with his family.  In the summer of 2013, Jonathan, along with his wife and two boys, took an adventurous month long trip through Asia.

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Alberto Lopez

VP Mortgage Lending


Alberto is Vice President of Mortgage Lending and Branch Manager of the south west suburban Chicago location of Guaranteed Financial which is located in Countryside, Illinois. Alberto leads a team of talented mortgage professionals as well as provides mortgage lending services to his personal client base.

Alberto’s tireless dedication to educating prospective and current homeowners, his vision toward the future, and over 12 years of mortgage lending and management experience have made him an asset to his clients and business partners as well as an integral part of the Guaranteed Financial Leadership team.

Life outside of work for Alberto is spent enjoying his time with his family which consists of his beautiful wife and three young sons. Alberto also maintains a very present role in his community by volunteering his time as a coach of his sons’ youth baseball, soccer and basketball teams as well as serving as a board member of his local Catholic Elementary School. Alberto is also an avid sports fan and when not coaching youth sports, he loves to take-in a game of his beloved Chicago Cubs, Chicago Bulls or Chicago Bears.


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Annarosy Ortega

Processing Manager


Anna oversees the entire Processing Department at Guaranteed Financial, including the various verification processes that take place throughout the transactions, the funding of residential mortgage loans, as well as the extensive quality control and audit procedures that insure that Guaranteed Financial continues to sustain itself above federal and state standards.

Anna started her career in the banking industry in 2002; fulfilling many roles at a local neighborhood bank.  In 2006, Anna decided to join the Guaranteed Financial team.  The experience and training Anna received during her tenure at her previous employer quickly propelled her to the management role she now holds.  Throughout the years, Anna has developed an intricate system of processes and procedures that has reduced the turnaround time for loan closings to an average of three weeks.  In 2014, Anna launched the program “Greener Youths”, an initiative that promotes financial awareness among young adolescent teens.  When Anna is not occupied at work, she enjoys being a member of the Chicago Sirens, a women’s rugby team, with whom she traveled to Africa to participate in a world tournament in 2014.  Anna also loves camping and hiking, mentoring at Metro, a local girl’s achievement center, and spending time with her niece and nephews.  



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Luis Treto 

Mortgage Loan Originator


Luis is responsible for originating mortgage loans as well as educating prospective borrowers on the multifaceted process of buying their first home. Luis holds the pivotal role of point person during transactions, including coordinating and communicating with realtors, attorneys, and title company personal.  Luis is also directly responsible for collaborating with underwriters and their respective processors to ensure the execution and efficiency of the loan transaction.

Luis began his career as a Mortgage Loan Originator with Guaranteed Financial in 2004.  In 2008, Luis took a leadership position with a large regional bank, where he further extended his already extensive experience in residential finance.  In 2013, Luis returned to the Guaranteed Financial team to advance his career as a Mortgage Loan Originator.  When not busy at work, Luis enjoys exploring his home city of Chicago by visiting as many of Chicago’s vast selection of culturally inspired restaurants as he can.  Luis likewise has a passion for a wide range of music, from Chicago’s unique indie music to Contemporary Jazz.  When he can, Luis likes mixing and combining existing music with different sounds and beats; creating new music for people to enjoy.




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Gustavo Andrade 

Mortgage Loan Originator


Gustavo is responsible for originating mortgage loans as well as providing an efficient and seamless process for his clients.  With over 10 years of residential and consumer lending experience, Gustavo began his career with Guaranteed Financial in 2015 and is a member of the Countryside, IL branch team.  Throughout his time in the lending industry, Gustavo has maintained that the key to a successful mortgage loan process is communication between all parties associated with a loan transaction which can include real estate agents and attorneys as well as the homebuyers/homeowners themselves.  Gustavo’s client-centered approach and consistent level of communication amongst team members and clients are what make him such a valuable asset to his clients and business partners.

Aside from his position at Guaranteed Financial, Gustavo serves as Youth Mentor to Chicago Public High School student as well as serving as Vice President of Communications for one of Chicago’s premier business networks, The Hispanic Business Network, whose organizational goal is to foster career development, the creation of commerce and encouragement of community involvement within the Hispanic community.

In his free time, Gustavo enjoys spending time with his beautiful family, playing the guitar or taking-in local craft beer shows.



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Mairead O’Riordan 

Mortgage Loan Originator


Mairead is responsible for originating any of the vast types of mortgage loans Guaranteed Financial has to offer.   Mairead is also accountable for coordinating and communicating with clients, realtors, attorneys, and Title Company personal regarding the process of the loans she’s involved in. 



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Carol Greenan 

Mortgage Loan Originator


Carol is responsible for originating any of the vast types of mortgage loans Guaranteed Financial has to offer.   Carol is also accountable for coordinating and communicating with clients, realtors, attorneys, and Title Company personal regarding the process of the loans she’s involved in. 




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Javier Arellano 

Mortgage Loan Originator


Javier is responsible for originating any of the vast types of mortgage loans Guaranteed Financial has to offer. Javier provides eight years of experience working in the finance industry, of which the last five have been as a mortgage loan professional. He is the contact person for home buyers and individuals looking to refinance their home loans. He thoroughly guides and educates our clients from the initial application up to the very day of closing.

Javier earned his bachelor’s degree from Northern Illinois University in 2006. When not helping clients with their home buying experience he enjoys spending time with family and friends and loves a good cookout. He’s also an avid reader of personal development books.



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Javier Treto

Mortgage Loan Assistant





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Cinthia Salgado

Processing Assistant