I am looking for a builder to partner with who will finance building costs (and get reasonable GC fees above cost for their efforts as well).

PLUS, good property management companies are great to build relationships with; they see and hear of off-market deals.

Not having the capital to jump on deals leaves limited options on "building capital and cashflow".

Comps might be available to find some info on, but again the details of the property condition etc will be difficult or impossible to compare.

I think, generally speaking, this is one of the bigger reasons NOT to build an ADU in your backyard simply because you have the space: there aren't really any simple ways to finance the building costs. 

I am thinking about moving out to Sacramento, as I see some duplex’s around 500-700k range.I’m planning on house hacking my first property, which would be a multifamily, and build a portfolio of multi-families within the Sacramento area.

Hello, building a home in 30a. 

I have also aquired vacant lots that I plan on building duplexes on...

I am a certified building contractor and a certified underground utility contractor.

Hey Bp Fam, Im looking into accepting the terms of this deal however, Im a little hesitant because  my initial request was to have at least 2 months of build out period without payment as the value I will be adding to the commercial  property will increase the properties value.