Those plans are specifically for your site, but I guess the worst that can happen is they copy your ideas for the floorplans, elevations, etc, but I think most GC's are too busy for all that.

They can provide insights into tax implications, specific filing requirements, and potential deductions.General advice?

The answer seems very broad vs specific to your circumstances. 

If you haven't been tracking your material participation, done a cost segregation, or any other techniques specific to real estate and just want someone to file on your behalf then there might not be a huge difference between H&R and a specialized CPA.

Specifically considering zip 92544.Much appreciated!

The best you could do is call the agents broker and file a complaint with that specific agent. 

To your specific questions:1. 

Consult with a mortgage broker to assess your specific financial situation and find the most suitable loan option.Since you have $50,000 in equity in your current residence, refinancing could be a way to access this equity and use it as a down payment for the new duplex.

LIke how to get rich in foreclosures right now would be pretty tough to do since they are non existent.. or in a uber hot market like now.. owner financing or the super duper lease option niche these all work in heavy distressed economy cycles but pretty tough today.  

I think you need to be specific about what you use in your screening criteria.