Run your Real expenses such as taxes, insurance and fixed costs, and a reasonable number for vacancies and for repairs/capex (depending on This property age/conditio).Also be aware, you will have about 5% for closing costs including prepaid insurance and taxes.

Liens do not have to be prepaid, there just needs to be enough proceeds to pay them off at close.

http://www.biggerpockets.com/forums/50/topics/1107...Also, if you're going to be investing in real estate on a fairly regular basis, you may want to consider Legal Shield or other prepaid legal services.

At its core, a timeshare is simply a prepaid - and very expensive - hotel suite. 

Prepaid rent sounds nice but it is not to be confused as a safety net. 

Be clear that they are to transfer all Tenant leases, payment ledgers, applications, move-in checklists, or any other documents in the Tenant file, spare keys, prepaid rent balances, and security deposits. 

This credit can be used towards paying for your closing costs and prepaid interest, which can save you a significant amount of money upfront.

The notice shall be personally delivered or sent by first-class mail, postage prepaid, to the person to be notified at her or his last known address and, if there is reason to believe that the notice sent to that address will not be received by that person, also delivered or sent to such other address, if any, known to the landlord where such person may reasonably be expected to receive the notice.

You may also want to factor in additional costs such as property taxes, insurance, and any pre-paid expenses.I hope this information helps you with your calculations.

This can be applied to closing costs, pre-paids, and fees.