I couldn't figure out any way to give someone a login that only had limited access. 

You probably want to form a general partnership or limited partnership.

I have limited funds so I don't want to start with expensive paid ads right now, but that limits my options.

Never limit yourself as to how you're gonna get paid.99.99% of the time, I've come out ahead because I've taken the extra step to accommodate my customer.Here's one for you all...."

60% LTV is not that low, particularly in a higher rate environment where the debt service coverage requirement (cash flow) is now limiting LTVs to 60-70% in many cases anyway.Separately, should be able to get a commercial loan with a rate in the 6s.

Are you limited to NJ?

FYI in cleveland when the city sees the owner as an out of state entity you are put right in the cross hairs and they will literally go measure the grass and fine you and make it a criminal offense. so in cuyahoga county yes i agree to use a LLC but I would do an ohio one.

Also, you can ask your existing lenders to increase your credit limit-- usually they'll ask for your income and you can include your rental income.

Probably best to look elsewhere accordingly, as the availability of properly zoned STRs is quite limited.   

I went into the bedrooms and don't notice the sloping floors so much just by 'feel' and admittedly haven't put any measuring device like a level to it.