-source = same boat(ish)

BP is  great source for mostly unbiased real estate knowledge. 

This is one of my favorite features of Bigger Pockets especially for asking specific questions.

Can anyone recommend a good source for developing and optimizing such a website?

The weekly podcasts are a good source of knowledge.  

This is one of my favorite features of Bigger Pockets especially for asking specific questions.

Not sure if you can overlay a tile feature .

Sometimes that involves omitting features in favour of a more succinct experience - one that is more appropriate on a mobile device - but those features will probably be there on the "shrunk-down" mobile web site, should users need them.There are pros and cons of both native apps and mobile web sites, some of which you've correctly identified in your post.

I am trying to figure out how I can locate Divorcee/ Code Violations/ Fire Lists on List Source?

I am also trying to add value by helping my cash buyer secure funding with some of my lending sources.