Do NOT co-mingle money. 

Or at one of your flips an accident happens and the worker(s) sues you, beyond the limits of what, you (hopefully) have as builder insurance?

The co-op will likely be purchased by a family member.

In Colorado you can manage short term rentals without a real estate license tho I dint know the regs regarding money. 

In all likelihood, you are also forming a general partnership with the co-owners of the property, giving you all fiduciary duties to one another.  

My strategy is to use the HELOC purchase single/multi-family properties under market value that need repairs and renovation, make the necessary improvements, then refinance into a Mortgage (with forced equity), and rent for cash flow.I'm originally from the great state of Colorado, but have been living in Nashville, TN for several years now. 

@Oleg Enik if I were you I would try to talk to someone ab possibly co-signing w you.

My boyfriend is a co-owner of the house and he never gets these calls (he has a Kansas area code.)

My friend and I are both newbies in Real Estate investment. We recently found a condo in San Jose, CA. We want to buy the house as tenants in common. Each of us will pay half of the down payment. However since my frie...

You wouldn’t get two loans, you would get one loan secured by a first trust deed and both of you would sign as co-borrowers.