Loopnet has some comp information, but requires a paid (and not cheap) account to see it.Commercial properties are generally valued based on income, not comps per se. 

Quote from @Sam Wilson: We invested via a retirement account.

Have every detail spelled out, use an escrow account and daily updates verifying all parties are executing their responsibilities.

I have totally given up on Quickbooks though it remains the best accounting software for the non CPA type 

Quote from @Courtney Dettlinger: Your equity is not a savings account from which you can withdraw for free.

We have some retirement accounts.

Future land appreciation in this area might outweigh any tax benefits from buying in other areas, with a better (tax-wise) ratio.Before pursuing your plan, talk to a real estate accountant to figure out if you can, in fact, benefit from cost segregation.

You want an accountant who can help you strategize and who is responsive when you want to know the consequences of the financial decisions you are making throughout the year.Good luck.

These are features like online renter payments, tenant portal (for payments and work orders), help keeping track of work orders, tax reporting features, and accounting functionality.

My firm integrated the services together and our clients have loved the one stop shopping for all RE accounting, tax, asset protection and entity work.