@Chris Eaker  The reliability of income is absolutely paramount to the applicant or renter's qualifications.  

However, if you have a separate contract for the storage unit rental and it's not on the premises of the residential rental unit, then it may fall under storage unit rental laws.It's paramount that you invoice in a timely manner whenever a tenant owes you for something.

Also, responding to issues in a manner that is swift, fair, firm, and polite is paramount.

In my experience, maintaining a good but business oriented relationship with tenants is paramount.

Due diligence is paramount to make sure you know what you're getting.Also the performance of an individual mobile home park is hugely dependent on the person running it and how they manage it - are you running a trailer park or a mobile home court?  

Having a tax strategy is paramount which includes reviewing your syndication & RE investment objectives with your CPA.  

Relationships are paramount if you are investing out of state.

If the goal is to hold the property long term then the terms of your financing are paramount as it impacts your cash flow quite a bit.

Most effective for me is a spreadsheet I adapted from Fortune Builders years ago.Being able to react quickly when a true opportunity arises is paramount in being successful in our market.Look forward to meeting with you and happy to answer any questions I can.

This is a paramount fact, an absolute key-stone to it all, remove this everything is way different.