Making Monthly Payment During Rehab

[Christopher Grant]

Hi all, 

This one is for the flippers out there. Buying a property that needs 4-6 months of rehab, with a mortgage or hard money loan that requires monthly payments, how would you make the payments on the loan while the house is under construction or on the market waiting to be sold? Do you generally have enough saved up before hand to make the payments while the property's cash-flow is idle? Are there different ways to structure hard money loans?