The "mistake" on its face appears to be an ethical violation that could lead to a formal complaint and/or lawsuit.

I even drew up an amendment, stating that I will pay a higher per diem rate than what was asked, dating back to the original close date, and Seller refused.We did not have a formal signed amendment to extend the close date prior to going into closing.

You will be required to do a formal third party appraisal every time you do the conversion.

Some will come along and say start a formal eviction and legally do things by the book and lose money for the next 90 days waItIng ..stIll others will come along and say pay the guy cash for keys strategy to persuade hIm because Brandon says it’s a good idea in his book .

bedroom out of somewhere like a formal dining room and make that YOUR bedroom for greater cash flow?

Do they send you a formal notice and tell you the date that it happened?

Or should I order a formal appraisal? 

Since I am brand new and still in the learning process, I don't have a LLC set up, which means of course I don't have business cards or anything formal at this point.

Just because you do it does not make it OK to do and does not make it OK to share it as advice for others. 30% is generally considered to be safe, but it's based on interpreting examples in the Treasury Regulations and not on some formal rule.We all make mistakes.

Try to formally zone and convert it into a duplex, and aim for a much higher appraisal?