Ask them to explain.2) They should provide you with the materials receipt, which you'll need for the warranty!

Lots of material online.  

Alternative Solutions: If refinancing isn’t possible and a buyout is needed, consider a structured buyout agreement where the remaining partners gradually purchase your share, allowing you to exit while they assume full ownership.This post does not create a CPA-Client relationship.

Quote from @Conrad Tillman: Quote from @Jay Hinrichs: LOL  its kind of like 50 ways to leave your lover.And its very much dependent on your jurisdiction. however I will list the stuff I have gone through the last decade or so through about 200 new builds in 4 markets.1. material price fluctuations. rarely down almost always up pretty much annually. 2. as we all know labor  scarce  and or unqualified and do poor work..

Until Fed begins to cut rates I’ve found alternative lenders in some cases to be competitive with banks on construction debt when considering the totality of factors (rate, leverage, depository relationships and pre- payment penalties).

But it is not a closed option as there are a few that do not have these restrictions.As an alternative, you might want to look into house hacking or buying a single-family home instead.

Shortages of construction labor and material will also have a major impact upon pricing. 

Alternatively, you could potentially have negotiated a lower purchase price… or just walk from the deal if it doesn’t meet your underwriting criteria.

Consider FHA loans, conventional loans, and alternative financing options.

There is an alternative that involves doing cost segregation on property you purchase and using this to help offset cap gains resulting from failed 1031 Exchange.