Using a credit line and paying it back
I'm in the process of acquiring a credit line on a property. I'll have a $200K credit line soon. I know I could do a BRRR with a property under $200K but what if the property is over the $200K mark. How best do I use this credit in purchasing a property for let's say $400K? My credit line has to be paid back within 12 to 18 months. Thanks for your help!