Construction to Perm Loan - Single family and multiunit - CA

I have several projects under way in North Dakota that ill be completed by the end of the year. At that time I will have about $150,000 in cash, plus I will have another $50,000 from a side investment around the same time. I want to use that money as a "down payment" to finance the construction of several single family or multi-unit rental properties. I then want to convert those loans to long-term mortgages. Does anyone have any recommendations regarding where to look for this type of financing? Thanks in advance for the help!

Arthur