Should I refinance, cash out refinance, or get a HELOC

[Eli Yachini]

So I currently have three rentals, 2 houses and a condo. I want to convert the garage in each home to an ADU. I can do about 60 percent of the work myself. Since I can still do conventional I will be refinancing the condo (worth 240k, owe 140k) for a lower rate from 5% to 3 something. In terms of getting funds in order to do the ADU conversions. Is it a smarter idea to do a cash out refinance on the condo, or do a HELOC on one of the houses I have about 200k in equity in? I will be refinancing the condo either way in order to lower the payments and get a lower interest rate.