You will want to interview at least a couple of realtors and determine what resources they have available for you in several arenas (lenders, contractors, more). 

Quote from @Chris Seveney: Over the past quarter, I have seen around $1B in defaulted fix and flip loans - many of these from new lenders since 2020 and more of a "tech platform".As we all know, the intersection of tech and real estate investing has brought incredible innovation, especially in hard money lending.

If its not someone you know the lender will dictate the terms.

Your response really helped me understand the key aspects of short sales, especially regarding title issues, lender valuation, and inspections.I truly appreciate you taking the time to share your expertise!

You can also search Google and read reviews.

I was also going to ask if you'll have access to the property - many lenders will require an appraisal.

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. 

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The laws mostly protect me the lender and I have always gotten paid even if there are occasional borrower problems.

Building an ADU is a nice way to add value but you won't get that funded by a lender.