These are generally not up to code and will fail FHA/VA/USDA appraisals, and possibly others.The reason is that the permanent steel lally columns are filled with cement. 

You do not win all the deals but I just want the fat ones.   

And then extend that benefit permanently to your heirs.

I would just make sure you have some sort of permanent record, like an email, that you have pointed out to them the significant repair costs and the fact that they might be getting in over their head.  

. :) We plan to live there until another place we like better comes on the market, then get that as our permanent residence and rent out this place.

Excuse my fat finger miss spelling.

@Brian LarsonTried out the spreadsheet it is a nice product.I would add in more detail for your permanent financing such as a term...  

I can move in and change my construction loan to my permanent loan.

I would recommend to pursue eviction as it will go tenants permanent record, so in most cases they leave as soon as they get served by the sheriff because they realize that the landlord is not playing around.

Otherwise, it will be a continual thorn in the side every year, and it has the potential to damage landlord credibility.In your conversation with the landlord, emphasize that it is in both parties' best interest to diagnose and permanently fix this situation.