We want to get a Vacation Rental Permit for stays under 30 days for ADU but current zoning doesn't allow it.

I'm going to exclude my personal residence from this because I don't view this as an investment, I need a place to live.Excluding my primary residence my current breakdown is 47% real estate 53% stocks/cash. 

I am currently working on phase 2; building 2 ADUs.The permits are already in the works but the biggest question is what is the best approach when funding these 2 ADUs BEFORE I have the equity from my home?

I'm currently trying to build my list of interview questions that I would/could use when it comes to screening and finding the right Real Estate Agent.

Would I go to the current owners bank to see if they would allow a subject to loan? 

I own my current primary residence & have about 140K in equity.

There's currently a website set up to get information from customers that have had this contract "sleight of hand" done to them. 

I am currently in the bit of a rutt.

.: I’m currently renovating a rental property and exploring ways to manage costs without compromising on quality.

Quote from @William Dorrough: I currently either purchase and value add large scale multifamily properties or develop, and build ground up my issue with scaling is we have done this without brining in investors i have a great deal flow with a good track record im really looking to do more i have the capacity but have the need for more capital in one way or another  Scaling without investors can be tough, especially in multifamily.