404 error...sorry...here your go:http://www.bloomberg.com/news/articles/2015-06-08/...

Now consider time for architect to design, time for engineering, permitting delays, sub-contractor errors, on-site theft (and having to deal with insurance), time to list/sell.... and anything else I did not mention.Play it safe, especially the first time you do something like this.

The options are few: reduce to occupancy of 3 br SFR (basically lose 3 units, results in huge financial loss), hook to sewer which depending on distance to sewer could be over $100k, convert to Aerobic Treatment Unit (ATU) which in my market is ~$20k. 

He or his accountant should have caught the error before now.

Depending on your personal goals and whether you have more time than money.Get prepared at some point to invest some of your profits back in your education.”Trial & Error Cost Us Time & Money!” 

@yang;  he'll pay cap gains via installment sale tax treatment which is to his advantage. 

Each repair didn't end up perfect and had to be completed through trial and error.

This is because they are going to spend significant time prior to the meeting to analyze your return, look for errors (and opportunities to amend) and make sure you don't have any red flags that they can't/don't want to involve themselves in and/or also check for areas of tax law in your situation that they are not familiar with and don't feel competent to address (not every tax pro is an expert in every issue)I don't charge for my initial consultation, but I also am not going to offer to review your return and offer specific strategy. 

The truth is, you could read 100 books and still not know enough because certain things need to be learned through trial-and-error.

Someone who can take the trial and error out of that, and prove with cold hard data that you are missing opportunities because you weren't aware of their existence is invaluable.