I don't mind paying them for their knowledge if it means avoiding the many mistakes they made so I don't have to.

I'm assuming a flip would be out of the question, unless I can live in and refurb over time, but I want to make sure I avoid the dud areas. 

I personally want to avoid getting to that point all together.  

I was looking for advice from someone who has experience with pure land lots, I would like to know what to look for, what to avoid, and other details like that.

Give you a big $$$ savings tip, avoid employees.

- Often, one must use at least a portion of the existing foundation to preserve allowable uses/avoidance of certain fees (i.e., impact).As for adding a mobile home to an existing fixed structure, it's not someting I'd personally do.  

I.e. loan to value, your credit score, you want to put down as much as you can and at least 20% to avoid PMI that is charged by lenders when you put down less.

Lots of good info can be found lower on the Redfin listing page with comparable available and sold properties.I'm in Snohomish county and there are REI deals here outside the cities - I avoid the city of Everett like the plague that it still is. 

They might still avoid certain streets and blocks of course ...I try to avoid oil heat; just because oil prices are down now does not mean it will last.

Any recommendations on who to avoid and who to work with?