Sometimes, using two loans instead of one to finance your property can be a smart move:

Taking a first mortgage loan to 80% of the property value and using a second for any difference needed is a strategy often used to avoid PMI or to keep the majority of your financing at conventional limits.

However, it also pays to be aware of what the real combined rate is by properly "weighting" each loan amount and then determining the overall cost of interest. This analysis can be used to compare available options for your situation.