There are two aspects to being an investor in a Reg D 506c offering who’s unaccredited and did not provide sufficient proof of accreditation (one could possibly obtain needed docs and in this case the sponsor would be the victim  of fraud).

If searching on your own is not sufficient, try making a connection with a new real estate team - there are bound to be real estate teams specializing in investor-focused purchases2.

For some reason I think that this will lead to problem guests.I just don't see the need and I have never been asked.Frankly, good photos and maybe a plan layout should be sufficient.

However; investors also bear a responsibility to sufficiently investigate the contemplated investment, to assess whether the investment is appropriate for them, and to know or learn enough about personal finance to evaluate whether or not they are able to sustain a loss without undo strain.  

You can always open HELOC or line of credit from your primary house or non primary house, assuming you have sufficient equity and income to qualify.

On the negative side you will need to show how you will use the property to generate sufficient income.

Many folks feel that a one year hold is sufficient. 

However, my take on this is they did not do sufficient due diligence on many fronts, including city government challenges, operating challenges, infrastructure challenges and marketing challenges. 

Also AirBNB stocking fees, maintenance, cap ex.But at the same token know that the principal portion of your mortgage payment is actually not a true expense so there is that benefit to doing all of this even if you are light on the cash flow or break even.  

Once you have sufficiently built up your leverage, you can make a pitch  to someone with cash to and they may bite.