What loan product can I use to keep my current property , rent it so it can help pay for the loan while I build the second property ?

If you can earn more than 2.85% with those dollars then you should NOT Pay off the loan. 

I'm a new investor in Seattle and have been analyzing flips, short-term, and long-term rentals using Dealcheck and some proformas that local agents and investors have sent me.

I also have a Facebook group I created called "Coachella Valley Short Term Rental Owners" in case you are interested.

Maybe sell the one or two that are older, worse area etc. you could use the money to pay off your personal or the loans on the other two.

Happy to assist with a fix & flip loan on your next project! 

However, lately, I've been researching co-living and short-term rentals, and I believe the property would be more attractive with a restored pool.

Looking to buy a brand new house 2023 price is reasonable and charging 0.8-1% of purchase price is do able..my question is financing real estate but my first property is almost paid off and has been an uninterrupted rental for 7 years thankfully 90% paid off, cash is tight...could take out loan against CC at 4% flat to pay off house then maybe leverage paid off rental (private mortgage)?

If a quitclaim deed is used, can the bank release the loan to the other spouse?

My loan application was denied because my salary from my full-time job is too low.