Client mortgage one home, then subdivides; et: Lot Hack

[Mike Kinder]

Lot Hack: Client took out a mortgage on an Northern VA Home and later, subdivides the lot. This to sell the second lot and pay for his build out of a new home, then build a second house on the other lot to a new buyer (speck or build to suit)

Q:  How does the client workout their current mortgage?  

We are the GC for this build out.  Client wants the GC to try and provide funding for the builds; which is why I'm asking the first question.  

Any ideas would help.  

Mike