When I started I did a refi on my home and pulled some equity out for downpayments. I was advised at the time to get all the loans at one time so that they would all be approved. I bought 9 out of state SFRs at one time (all but 2 brand new). It worked out at the start until many of the insur and taxes started going up due to a boom. I was from Ca and didn't realize those two expenses could really escalate with severe weather and higher values and they were eating up the margins I left. I had a great job at the time and was able to handle anything that came up but then a crash occurred and there were so many properties on the market that the rents also crashed. The reassessments were not happening as fast as when the properties were going up (taxes) and insur stayed high. I got rid of a few at that time and unfortunately due to a medical issue in the family, I sold 2 others. I am happy I did buy houses when I did dispite all that but should've really started with less and not worried about loans being approved which is definitely secondary to being able to hold the houses. The 3 I have are all worth a lot more and all going great with those. I wish I held on to some of the others but, oh well! With another property I bought through borrowing from a family member 100%, I was able to sell it and trade it to some newer properties with better cash flow and can live off the income of all my rentals now. So, yes, I would advise getting either a loan against your primary if rates are better for you or HELOC if those #s work for you. Real Estate was the best investment I ever made and I have much freed up time to do the things I have always wanted to do when I was working so hard all the time.