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Mike Castronovo
Associate VP

Mike Castronovo, AVP of Mortgage Lending at Guaranteed Rate, has been originating mortgages since 1998 serving everyone from first time homebuyers, to billionaires with multiple residences across the country.

Mike's philosophy is that every customer deserves to be treated like a Rockstar when they're looking to finance their home.

He spent most of his career in Private Mortgage Banking and Wealth Management where he learned how to provide white glove service, as well as how to help his clients grow and protect their wealth.

Today, he thrives on using that knowledge to educate all borrowers, believing that a mortgage is not a "one-size-fits-all" commodity. Mike says, "People say they want 'the lowest rate', but what they really mean is that they 'want to save the most amount of money'. Most people are surprised when they learn those are not necessarily one in the same. I help you understand your options, and discover the best course of action for you."

As one of the Top Private Mortgage Bankers in the country, Mike was in high demand, but in 2020 he made the decision to join Guaranteed Rate, at the invitation of his longtime friend, Dean Vlamis, to become part of his team.

"I was blessed to step into a situation where I'm part of a top team, within one of the nation's best retail mortgage lender, offering industry-leading technology, low rate and low fee mortgages, through an easy-to-understand process and unparalleled customer service."

Mike and his team pride themselves on delivering a smooth mortgage experience to every client. "In today's competitive mortgage world, it's not enough to be great, we have to be amazing!", says Mike. "My entire mortgage career has been built on referrals, and at Guaranteed Rate, we want to add every client to our growing list of raving fans!"

In 2017, Mike and his family relocated from Chicagoland to Nashville, and eventually settled in Franklin, Tennessee. When Mike is not originating loans, you can probably find him listening to live music, and helping artists and songwriters further their careers.

Helpful tools and resources
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The Best Mortgage Experience
First-time homebuyer’s guide logo
First-time homebuyer’s guide
Mortgage calculators logo
Mortgage calculators
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Loan options

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Today's rates

Loan typeRateAPRDiscount points ($)Mo. payment

This is NOT a mortgage loan approval or commitment to lend. The actual fees, costs, and monthly payment on your specific loan transaction may vary, and may include city, county, or other additional fees and costs. Mortgage rates are offered exclusively through Guaranteed Rate and are subject to change without notice. If the down payment is less than 20%, mortgage insurance may be required and could increase the monthly payment and APR. The payment amount does not include homeowners' insurance, flood insurance (if applicable), or property taxes that must be paid in addition to your loan payment. The displayed Annual Percentage Rate (APR) is a measure of the cost to borrow money expressed as a yearly percentage. For mortgage loans, excluding home equity lines of credit, it includes the interest rate plus other charges or fees (such as mortgage insurance, discount points, and origination charges). For home equity lines, the APR simply reflects the interest rate. When shopping for a mortgage, you can use the APR to compare the costs of similar loans between lenders. One discount points equals one percent of your loan amount. Some jumbo loan options may not be available to first\-time home buyers. We based the mortgage interest rates shown on a 30\-day rate lock period. Under certain circumstances, a 30\-day rate lock may not be available. When you apply, you can choose to lock or float your interest rate range. Mortgage rates and loan options displayed depend on a number of variables, including the accuracy of the information you have entered, which is subject to verification, credit and property approval. These mortgage rates are based upon a variety of assumptions and conditions, which include a consumer credit score that may be higher or lower than your individual credit score. Your loan's interest rate will depend upon the specific characteristics of your loan transaction and your credit history up to the time of closing. VA If you meet the eligibility requirements of the VA program, gifts or grants may be used for down payments. Up to 100% financing may be available for qualified borrowers. Most VA loans require the borrower to pay a 'funding fee'. This fee may be paid out of pocket or financed into the loan amount. At the direction of the United States Congress and the Department of Veterans Affairs VA Funding Fees may increase or decrease without notice. Guaranteed Rate, Inc. is a private corporation organized under the laws of the State of Delaware. It has no affiliation with the US Department of Housing and Urban Development, the US Department of Veterans Affairs, the US Department of Agriculture, or any other government agency. Adjustable Rate Mortgage (ARMs) Interest rates and payments may increase after consummation. After the initial fixed period, your interest rate may change periodically according to the market index. Any change may significantly impact your monthly payment. Since the index in the future is unknown, the First Adjusted Rate and Payments displayed are based on the current index plus the margin (fully indexed rate) at time of scenario/disclosure. Before choosing an ARM, you should decide if you can manage the maximum estimated payment if the rate increases. To fully understand minimum and maximum payments, please speak to a mortgage loan expert.