Thanks, Erica, and welcome to everyone joining us on the call today for AppFolio's fourth quarter and fiscal year 2017 financial results. We finished 2017 strong with full year revenue of $143.8 million, a 36% increase year-over-year, and full year GAAP net income of $9.7 million, or $0.28 per diluted shared, compared to a net loss of $8.3 million reported one year ago. Included in our full year results is $6.1 million of non-cash charges related to stock-based compensation. For those of you who track non-GAAP results, our Form 10-Q will be filed later today and includes more detailed financial data points that you may find helpful in calculating non-GAAP results on your own. Turning to our fourth quarter, we reported total revenue of $37.9 million, which represents year-over-year increase of 35%. We’ve reported GAAP net income of $2.6 million, or $0.07 per diluted share, compared to a net loss of $1.3 million, or $0.04 per share reported one year ago. Included in fourth quarter financial results are $1.8 million of non-cash charges related to stock-based compensation. Core solution revenue was $15.5 million in the fourth quarter, up 27% from one year ago, primarily due to a 17% increase in the number of property manager customers combined with 21% higher property manager units under management. We ended the quarter with approximately 11,700 property manager customers managing in aggregate 3.25 million units in their portfolios, up from approximately 10,000 customers and 2.68 million units under management one year ago and the legal vertical customer count increased 15% year-over-year to approximately 9,350. Fourth quarter Value + services revenue was $20.8 million, up 42% year-over-year. Although each of the value-added services increased, the majority of the growth was derived from increased usage of electronic payments and screening services by a larger property manager base of customers and units. Turning to expenses. Total cost and operating expenses for the fourth quarter increased 21% year-over-year on a GAAP basis compared to an overall 35% increase in total revenue. The improved operating leverage was driven by our ability to increase revenue coupled with a more moderate increase in headcount and to a lesser extent from improved pricing from various third-party service providers related to Value + services. We intend to continue to invest back into the business with the operating leverage we have gained as we continue to focus on attracting and servicing larger customers in the property manager market. Further, we may make additional investments to expand into adjacent markets on new vertical markets over time. Moving to the balance sheet, we closed the fourth quarter with $68.3 million in cash, cash equivalents and investment securities and no debt. During the fourth quarter, we generated $7.8 million in cash from operating activities. We used approximately $500,000 for capital expenditures during the quarter and invested $2.4 million in additional product innovations via capitalized software. To recap the quarter, total revenue for 2017 was a $143.8 million, representing 36% growth year-over-year and GAAP net income was $9.7 million, or $0.28 per diluted share. We are pleased with our results and continue to focus on our customers needs as we look forward. Turning to guidance, on January 1, 2018, we adopted the new revenue recognition standard, ASC 606, using the modified retrospective method and do not expect the impact on 2018 revenues to be material. With that said, the primary impact will be a change in the timing of when we recognize certain sales commissions and other incremental costs to obtain new sales contracts. Historically, we recognize these expenses in the quarter they were incurred. Going forward, these costs will be deferred and expensed over a three year period. We provided additional information about the adoption of ASC 606 in the Form 10-K that will be filed with the SEC today. We currently expect full year revenue for fiscal 2018 to be in the range of $179 million to $182 million, which represents year-over-year growth of 26% at the mid-point of the range. We expect weighted average diluted shares for the full year to be approximately $36 million. We invite you to submit your questions via our Investor Relations website at www.appfolioinc.com under the Investor Relations tab. With that, I'll turn the call over to Jason for some additional comments.