However, some lenders may have requirements regarding the property's condition or completion status.

No (institutional) lender will finance 100% of your purchase price as a purchase, all lenders want "skin in the game".

Ultimately though, it will depend on the lender and the availability of funds (assistance) available for the demographic area that you are purchasing in.Do you have a property that you are looking at?

I have been able to review or been told of several audits (from other REI tax colleagues) related to cost segs in the last year or so- and of those none of DIY cost segs were allowed under audit. 

However, I do have a lender that can conduct an entity transfer with a commercial loan from 2 units and up.

Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

There are rentals, fix and flippers, lenders, tax liens, note investors, STR, commercial etc.

See my video on this for more info.Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

If it’s a blanket loan they would talk to the lender ahead of time.

Your $80K HELOC can serve as the down payment, as most lenders require 20%-25% of total project costs upfront.