You only need a place to track tenant information, payment history, maintenance, etc.

When a husband and wife jointly own a residence, and the husband takes out a Home Equity Line of Credit (HELOC) in his name only, the spouse's involvement and liability can vary based on several factors, including state laws and the lender's requirements.1.

James Dainard is a prolific professional house flipper, with a track record flipping nearly 4,000 homes in one of the most competitive real estate markets in the US - Seattle, WA.

Check with a few local credit unions as they usually have the best HELOC offerings.

One of the things you can start doing is reviewing your credit score and work on improving it if needed.

We can track all the values on Coinmarketcap if anyone else is wondering.  

Most of my clients run their SFRs at a 25%-30% (excluding vacancy/credit loss) operating expense margin and most of the banks I deal with on their DSCR loans underwrite using 35%.

Second, try to ask for "LINES OF CREDIT" instead of HELOCs.

Credit agencies ding you for having a statement balance.

Quote from @Jeff Chisum: If a DSCR originator (keep in mind you don’t need a mortgage license to originate) tells you the loan will not be reported on your personal credit but require you to be a personal guarantor your next request should be; “I want to see in writing it will not be reported on my personal credit”.