Armando Gomes bought a four-bedroom, 3.5-bath home at 1011 Marvilla Lane in Frontenac from Thomas M. Tirjan for $865,000 on Dec. 8.

The 4,124-square-foot house was built in 1967 in Frontenac North. It is located in the Marvilla subdivision.

Gomes is an associate professor in finance at Olin Business School. He is also the owner of VivaSmiles-Advanced Dentistry.

He earned a degree in engineering from Instituto Militar de Engenharia-IME, Brazil, a master's degree in mathematics from Instituto de Matematica Pura e Aplicada-IMPA, Brazil, and a PhD in economics from Harvard University.

Tirjan is the market director of Sprint, a company that offers a range of wireless and wireline communications services. He had previously worked with Ellacoya Networks, Intira, Ascend Communications, Cascade Communications and Tymshare.

He obtained a bachelor's degree in business administration from Penn State University.

According to BlockShopper.com, there have been 56 home sales in Frontenac during the past 12 months, with a median sales price of $590,000.

Address: 1011 Marvilla Lane
Buyer(s): Armando Gomes (and wife)
Seller(s): Thomas M Tirjan (and wife)
Sale date: Dec. 8, 2010