Is there a lender who'd issue a signature-loan type LOC, based just on my credit worthiness?

We have been generating good cash flow, but we have been try to re-position the tenant base with more credit worthy tenants and it is taking a bit longer than we would like.  

You’ve meet no potential tenants, and yet some people on this post are advising you that by lowering your credit requirements some potential renter, again you’ve never met, and has never seen the property in person is going to pursue a lawsuit based on a violation of a protected class of which credit worthiness is not one.

Depending on the credit worthiness of the tenant, these investment would typically earn 6 - 12% on an all cash investment, with the possibility than good financing can increase cash on cash return.

Consideration must also be taken when the contract is for an owner financed deal where financing is based on the creditworthiness of the individual,   in this case the seller must be notified and they must agree with assigning the contract.

It could be that the very best, most creditworthy tenants are getting the better deal or lower move in costs (savvy shoppers) and know the opportunity costs of money.

Build your credit worthiness.

Most people's credit went down after 2008 due to nothing related to their own creditworthiness.

According to her people become creditworthy within 5-6mos of starting in the program.I would like every tenant-buyer that I have be able to purchase the home after the lease period.

The pros for student rentals are that you usually have very creditworthy cosigners, you can get large security deposits, vacancy tends to be lower, and the rent usually comes on time.