@Cole Harris what's the benefit of making the move? 

I think I have all of my ducks in a row but I want to hear from other investors who are interested in this model.Any tips?

We had a unit that was ready for open house this mid November that took 4 open houses to get a tenant moving in Christmas day (i know strange move in day, chose by the tenant).  

Also we are scheduling some consultation with lenders. what are the questions to ask the lender and also how to choose a good lender for investment properties moving forward ?

They are sure to move on at the end of their lease term. 

HELOCs let you access equity as needed, keeping costs low unless you use the funds.Key considerations: If you plan to scale quickly, the HELOC might provide the liquidity you need for faster moves.

Normally you can get up to 10 conventional mortgages before you will need to move towards the DSCR. 

That said, most of our DSCR options have had rates drop over the past few days, so right now is probably a good time to move forward (at an 80% or 75% LTV) as it is very possible to get you rates in the 8s and even low 7s right now at those LTVs, if your credit and DSCR ratio are good.

I am a resident physician in dermatology, during  medical school I bought a property in Denver with an Interest rate of 2.75% (COVID rates lol) with the goals of renting it out when I moved onto the residency.