I think it takes a while for your credit score to establish.

Establishing a relationship with a lender/broker you can trust is the key. 

It also helps establish the mindset that the rentals are a business.

If you plan to do deals in existing mobile home parks, it's best to focus on learning how to establish relationships and build rapport with park managers and/or owners.

This establishes credibility and attracts like-minded people who are drawn to successful ventures.Dear friends, each deal you close is a shining badge of influence.

Many investors complain about fees well the easy fix is either self manage or go out and establish these relationships like a landscaper and pay them yourself.  

Your example of the ice machine or other hallway areas in hotels doesn't hold water, because unless the hotel vets every single person that enters that establishment they have no way of knowing whether the person is a guest or a bum or a robber.

You can’t get a commercial loan because you live in the propertyCould you do a DSCR loan on the property and establish a primary residence somewhere else?

Manage Properties Hands-Only: Being close by enables you to take care of problems quickly, manage properties, and establish connections with local experts.

Establish definite financial targets and a budget that supports your investing goals.Learn about several investing strategies, such buying and holding, wholesaling, and fix-and-flip.