For the son to qualify for the $250k exclusion, I believe he would most likely need to meet the ownership and use test, meaning he needs to own and live in the home as his primary residence for at least two of the last five years before the sale.

Testing the market may get you an offer you're looking for!

This could cost around $500 to $1,500 per unit, depending on the size and complexity of the project.Certifications: There may be additional costs for certifications (such as HERS ratings) or third-party testing to verify the energy efficiency of each unit.For a 90-unit project, you could be looking at costs in the range of:$45,000 to $135,000 for energy modeling and certification (depending on the cost per unit).For a 112-unit project, the costs would likely be:$56,000 to $168,000 for similar services.Tax Credit Calculation:If you meet the energy standards, you can claim up to $2,000 per unit.

FI is a farce; your "number" will need to be tested against inflation so think every 12-15 years it'll be up 40-50%.

Lead paint testing requires no supervision or follow-up inspection.

It's usually best to talk with your neighbors about your plans and get their support as one of the variance tests is that the requested relief does not cause a public health issue or alter the essential character of the neighborhood.Try googling "tests for a variance in [your state]" and talk with your local zoning department.

These are questions I would ask and as you noted, if it seems to good to be true.....I have not dove into this in detail, this is just what the "sniff test" questions I would ask - could be a great investment for people - I am just telling you what I would ask. question would be who is the lender with a proven track record as you note Chris that would be important to know is the fixed debt investments ( loans secured by RE) bringing in say 8 to 9% and the equity in the MF is making up the difference with rental returns.. so say rental returns are 6% and the Notes are at 7% that equals teh 13%  ??? 

It's mind-boggling how you got 3 deals in a row like that.I always test $25-50K with a new operator.

The guru of that particular year will create some secret variation to a time-tested list of tactics that is the flavor of the weak and pretend like this is some new secret invention, perhaps inventing new language to describe tactics that have been around for years. - In the unlikely event that you get a lead, A "motivated seller" who will work with an 18 year old to sell their home, is likely someone dealing with death, disease, divorce, or disaster.

ACM (Asbestos Containing Material) abatement is a tough one because often you won't know (outside pipe insulation & 8x8 tiles which I can spot and point out with no testing).