The part that was attractive to me about this loan is that you can still do an fha purchase down the road and secure another property with a loan downpayment.

With the market where it's at, with so many people overpaying and thus driving prices up and making deals assets less lucrative, this structure allows deals to still be attractive for upside investors while providing a nice safe (in some cases, not all deals are safe/good) investment for those who are looking for capital preservation over growth.

The more bids any property gets, the less likely financing will be attractive unless it is much higher.

However, most lenders will only allow HELOCs up to 70% LTV on investment properties (as opposed to 90-95% on primary residences), and the rates aren't as attractive, whereas you can get 30-yr fixed loans up to 80% LTV on investment properties.Curious why you are going for HELOCs as opposed to fixed mortgages? 

The alternative is to have the title under a business partner, either a friend or family member, to keep things legal (mortgage will likely be under my name).Worst case I stay at the Marriott and keep the MFH as a pure rental but that extra $2900/month going towards the property during the months I’m TDY would be nice.I’ll discuss with my local Finance office as well but just wanted to see if anyone has had similar experiences. 

If people know what you are doing and know you are doing it well, you will be able to attract all kinds of business.

Live the small living room there or more attractive with home that has 3 rooms plus an office, for higher price?

Starting next month, I will be offering my tenants a deposit alternative.

Although they usually attract high-quality young professionals who have well paid jobs and easy to manage, I found the cash flow is just not as good as what I expected (which means a longer wait for financial freedom) and I will take me a while to accumulate enough to not have to work.

Can you elaborate more on these alternative investments ?