. Defer'em
Free Web-Based application that helps to minimize taxable gains on your 1031 exchanges by accurate allocation of all expenses. It sets up sold and bought properties as part of the 1031 (Like kind, Starker) exchange, and will generate IRS Form 8824 (Like-Kind Exchanges).

. PropertyWare - Top Pick
Web-based property management application for managing any type of real estate.

. iRealtyManager
Fully functional web based property management application designed to meet the needs of real-estate Owners, Operators and Managers.

. Property Center
Another fully functional web based property management application.

. landlordMAX
Dubbed the "Easiest property management software", this program is designed with the landlord/manager in mind.
Free Download

. RentTracker
Online property management software designed for small to midsized real estate investors and managers
Free Download

. Depreciate'em
Free Web-Based application that an application that guides you through asset separation for accelerated depreciation. In three steps, the application generates an asset report that allows you to see the tax benefits of segmenting depreciation, and you can even print IRS Form 4562.

. Free Property Analysis Tool from BiggerPockets
Produce revenue projections for investment properties. Analyze your operating expenses including, cash flow, rate of return, vacancy rates, etc.