I'm still working on my systems so I don't have any files or procedures to share but I can tell you that most of my business is run through Microsoft and Google products.

My excel spreadsheet had a lot of hyperlinks to other Microsoft files (including email) so I wanted something that could handle that.

(Just trying to keep the thread on track as I too am interested in this area).Kamal, some tools you may want to look at (that I've analyzed but have NOT really used extensively) is Zoho crm (there's even a pretty popular RE Investor who sells a version of Zoho crm, just for RE investors - I haven't used it however), Freedomsoft (some Investors curse it while others swear by it) and Microsoft Project Online (as part of the MS Office 365 Suite).

Here is a guide form Microsoft on how to do this...

Use Microsoft Word and Excel to do a "Mail Merge".

If you have the time, you can do comps with Microsoft Excel, or Access.

Most programs I've come across are either web based or use Microsoft excel.

Now, as Alex said above, when you're starting your business from scratch with no money, you may have to do the lower-cost tasks yourself (even Bill Gates started Microsoft as the sole employee, doing all the sales and code development himself).

We have a strong rental market - especially in certain areas, like my condo right across the street from some of the Microsoft offices.

Microsoft actually uses Pictometry for their Bird's Eye View in their map program however if you subscribe to their service you'll get the most updated picture versus an old one.