If we're talking about 1/1 condos then you would advertise it to IT professionals and find corporations in your community that has employees that are in and out.

The Solo 401(k) has advantages over an IRA, but not everyone will make use of those differences.In order to qualify for a Solo 401(k), you must be self-employed with no full time employees. 

@Yonasan SchwartzThe following IRS website pages contain good information regarding the prohibited transaction rules. https://www.irs.gov/retirement-plans/retirement-plan-investments-faqshttps://www.irs.gov/retirement-plans/plan-participant-employee/retirement-topics-tax-on-prohibited-transactionshttps://www.irs.gov/irm/part4/irm_04-072-011

One of my employees had water in his basement and I went there to help in wet vac it all up to help him out.

I've worked at New American Funding since Feb 2012 they treat their employee's right and borrowers right as far as I've seen.

Question for employees at BP or anyone else that knows the answer to this.

Is there a major factor that employees 5,000 plus people?

If they are not a member and are contributing work and do not have a percentage of the company then they would be an employee of the company and be paid a wage...

Does that mean employees(W2) if there work doesn't offer 401K option, will have to stick with Roth IRA or Traditional IRAand stick with max contribution of 5.5K/year.

You will need to be self-employed (or own a business with no full time non-owner employees) before you can create a Solo 401k plan.IRAs are subject to UBIT for investments into an active trade or business and are also subject to UDFI for debt-leveraged investments.Solo 401ks are subject to UBIT for investments into an active trade or business but are generally not subject to UDFI for debt-leveraged real estate investments.