Hello,I have 6 investment properties overall and am having difficulty obtaining a-line of credit on one of them because of the banks’ limit on how many rental properties you can have to lend to you.

Some will even give you a credit line up to 90%+ of home value.It would allow you to access a lot of that equity to use for down payments or cash buys.The downside is that HELOCs are usually floating rate.That’s probably the easiest way to minimize fees, keep your properties performing, and expand the portfolio.

If typical finance avenues don't pan out, always check with credit unions. 

Or should I go with just getting 2 or 3 secure cards  to start building my credit and ignore taking care of the debt (credit score-610)?

One on a property in Colorado, another on a property in Washington.Colorado: 130M balance, 3.375%, LTV ~51%Washington: 262M balance, 3.875%, LTV ~60%Maximum Loan Limits in Snohomish & King Counties: $667MMy idea to leverage myself into a new primary residence is in 3 parts.Refinance the WA property to conventional financing to free up VA eligibility and back it up with a 95% equity line of credit from SDFCU.Draw a NOO equity line on the CO propertyUse both equity lines for a downpayment on a new primary residence financed with VA fundingMy question is, does it make sense to refinance the WA property for the benefit of VA eligibility on the new purchase? 

Just to cover yourself,  find other non-discriminatory means to decline them like credit score, criminal background and eviction history.

I've been thinking of mailers, but I don't know what gives the most bang for the buck (and the second I started researching, I got bombarded with those little yellow card mailer ads).

If I decide to move to another agency that offers more training and support for a new agent, after they put in the time and effort to get me all signed up, business cards, website, various accounts, etc. 

You need a high credit score and no bad debt to move forward.

call all the banks and credit unions in the area.