Lenders WILL allow a secured loan ( like a second mortgage, HELOC, Cash out refi loan).

Guests typically understand that more people mean additional supplies, wear and tear, etc.As for your new cleaning fee, is it comparable to similar properties in your area?

For this deal, my mother and I secured financing through a Debt Service Coverage Ratio (DSCR) loan, which allowed us to borrow based on the rental income potential of the property.

Even if you do not supply washer and dryer, you are still 100% on the hook for cleaning the vents.  

Plan is so that he can retire and him and my Mom can be financially secure on rental income while my sister and I manage the properties in the trust. 

It's the same thing from a dollar perspective as it's just the accounting classification of funds, but since they applied the security deposit to the rent they also took part of the security deposit as late fees for themselves which just feels wrong since they didn't actually get the rent, but just applied the security deposit. 

A double security deposit can. 

I'm actively purchasing multiple properties and would like to leverage hard money loans with terms typically ranging from 1.5 to 2 years.My primary focus is on securing financing that aligns with my investment goals while ensuring that the rates and terms are the most favorable.

I was able to to secure a loan. 

Regarding security with buying the property, I can't say I'm too worried about that.