Does Hard Money typically cost 30-40% of the purchase price?? 

You typically need a down payment for many things you buy.

we do the same thing Jay but we look at this as return on entitlement spend and return on land purchase. we separate the two measurements. for return on entitlement spend its the total value of the land gain proven through either an appraisal pre and post entitlement from an institutional level appraiser by Berkadia or sale price divided by all of the soft costs needed to get the site to the finish line. we look for sites that are at least a 5x and typically focus more on single parcel sites that aren't assemblages and do it by going vertical not horizontal. as many have said there is much more risk in this strategy that you are doing that led to a lot of bankruptcies. also focusing on the luxury in my opinion isn't a scalable strategy. 

Typically it would be the tenants responsibility to provide access.

You're better off opting for an interest-only mortgage, saving on payments, and then refinancing it into something more conventional when interest rates drop—or, if possible, making a plan to pay down the principal.Interest-only loans, which typically last for the first 5 to 10 years of the loan term, offer two key benefits.

I typically don’t read a post that long but yours kept my attention. :-)

These platforms typically have billing policies where you pay a per unit fee per month to the software and you get regular updates and support each month.There are a number of low-cost platforms available that are able to offer you a lower price by passing along some of the costs to your tenants (payment processing fees, applications, tenant screening, etc).

Quote from @Ogonna Odo:  Small ones will not, they typically like cash or checks.

Makes sense to keep 60-80% LTV debt on rentals (to me).I will add;  I'm fortunate enough to invest in a lower cost higher performing rentals state of GA and I do advocate buying at DSCR of >1.5 absolute min and my typical was 1.7 and due to rent appreciation all are over 2.0.   

We have regular evictions at this scale and they typically will take a few months up to six or seven months if the tenant contest/hires an attorney.