From there, as long as the site is mostly informational about your business, you're really in the position of a sole proprietor who happens to have a website.

A solo 401(k) is for a sole proprietor, but offered many advantages.

To me what comes to mind are sole proprietors that need temp space for their startup ie new yoga instructors -OR- seasonal businesses that need a short term commercial lease.

You can run your business as a sole proprietor where you and your business are legaly and tax wise the same.

- Once an off-market property of interest is found, how do you reach the "decision maker" as most are owned as an entity instead of a sole proprietor.

Employer contributed portion is considered a reduction of income or a cost to the business to retain talent or employee's so its considered a "cost," whether its on a schedule C for a sole proprietor or if its deducted on an 1120S or 1120 corporate tax return.I just did a fourplex with FHA in March and it was 25% vacancy factor to determine SS rule prior I did one and it was 100% of gross income (some banks may have arbitrarily used 15% for risk reduction but it was 100% of gross income).

Depending... sole proprietor vs company with over head, legit contractor vs uninsured side jobber, type, size and quality of tile, shower walls and or floor, waterproofing, metal edging, niches, benches, shelfs, windows, deco bands, total square feet, backlog, substrate, relationship, layout. ..

I have thought of some options, but fail to see which is the best:1) I invest as the sole proprietor. 

Now, this is PER PROPERTY, not cumulative of all properties.Secondly, doing things like including your personal residence shows that you are operating as a sole-proprietor.

Anything I can do to my advantage tax wise / income wise vs. being a sole proprietor which I suppose is what I am at the moment?