If you're not sure when you're going to be moving then a ski-lease or mid-term might be an option. 

Would be a great option as you are about to close on the next project or pick a new one up. 

Your best bet at this point is to get together with an architect and see what your options are.

Furnished Finder means you will need to have more interaction points to process them and collect payment--- does not mean it's a bad option, but there is less automation involved.

@Nida Chaudhry,Given the demand you've seen, a 30x60’ garage with varied storage options could be appealing.

There are more lender options after 6 months.

(with the DSCR loan to purchase moving faster ~ 2 weeks, it's conceivable we may be at the closing table faster than the HELOC closes).We are considering other options for the downpayment (approx $25K);   and then replenishing the funds with the HELOC cash once it hits.  

Adding a co-signer is an option but know that there are options for lenders that allow DSCR for first time homebuyers.

If you're looking for affordable options with good cash flow, I’d suggest checking out the Midwest market. 

The MFM group is a machine that churns out many people looking to become MF investors.If you are interested in learning more about commercial RE, not just MF, there are many online virtual meetups as well which can give you a lot more exposure than just your local market for in person events.There are also other, more affordable, options to continue your education rather than paying a large amount for a mentorship program right away.Happy to share these with you if interested.