Best of luck you are at a choice location at the right time.

Sounds to me like you are making the right choice by just setting up your own. 

Sounds like you might not have made the best choice on your first lender but you'll get better over time. 

According to the article Ben referenced, any bubble forming is nothing like the previous one that led to our Great Recession.As long as the rating companies are giving honest grades and bond buyers are showing discretion in underlying paper, there will be no massive bubble to snowball into a massive crash.Individual investors beware according to the investing market of your choice.  

If you use a mortgage company that isn't in editor friendly you will face roadblocks of needing two years of income. 

If it is the case that you would want to rebuild (or are doing new construction) then Replacement Cost might be the best choice.

Among national companies Fidelity is usually a good choice, although some local offices of most national title companies still will not like same-day deals.  

He actually ends up financing less than he initially agreed to do, he's probably financing his gain deferring taxes, he could continue doing that or still cash out in 3 years.You have a choice of leveraging your other properties after one year or leaving the loan as it is, as the seller may agree.

I have worked exclusively with a single mortgage guy, that may not be the best choice for everyone, but Ive grown a good relationship with him and we know what each other needs.

Lots of other choices North of Boston too.