Definitely ask for references of clients that he has built ADUs for.Similarly, the $200K seems too high unless the foundation needs a lot of work to accommodate an ADU or you have other cost uppers (need a lot of hardscape or very high finishes).  

And maybe negotiate a floating or extended closing date of 30-60 days to accommodate any last-minute construction hiccups.Buying new construction to complegte a 1031 should be a relatively simple process. 

Nobody ever answers that question.Bottom line: the applicant is supposed to make a "reasonable request for accommodation" and you are supposed to allow it as long as the request is reasonable.

If you're gonna accommodate 6, accommodate 6.

Both of those counties are very accommodating to short term rentals. 

"non-recourse" as it is required with holding a property in a retirement fund - yes, there are lenders that provide this specific loan type and you can certainly accommodate holding an asset in an retirement fund with a mortgage.  

A better alternative might be mid-term rentals, which primarily accommodate traveling nurses.Additionally, you may want to consider choosing a location with lower costs.

It is good to write in to your offer options to extend escrow to accommodate your 1031 exchange. 

A small lake limits some water activities, where as a large lake can accommodate anything.

The city or train operator is under no obligation to accommodate your noise concerns.