Were your returns as projected? 

If they are professional, they can explain this quickly and easily.

in return for being allowed to promote the projects on their websites, hold themselves out as the co-gp etc.

But here is what blew my mind when reading this, but I know very smart people who fall for this all the time: It is the "“Too good to be true” syndromeHere is some excerpts:Kapoor’s alleged incentives included a contractual promise to pay the investors quarterly no less than a 7 percent return on investment that would begin when deposits and purchase contracts were signed, the lawsuits allege.

If you live in a unit, you can borrow against your equity more easily than if you do not. 

You can easily check prices online.

I know pvc is not porous but with temperature in the back side (inside the wall) the front will easily develop this.

Focusing your efforts on specific forums related to your interests helps in making relevant connections.Offering value before asking for anything in return can set a strong foundation for future relationships.

Don't forget about other legislation on the November ballot that can really hinder your returns from rental properties.

If you are looking to use your W-2 and tax returns to qualify, you would be using a conventional loan, which typically don't allow LLC vesting (unless you transfer the deed later).