The more money you make in your day job the faster you’ll be able to scale the real estate investments, if having a day job is the route you want to go that is.

In general, the park has to approve the tenant too.The park fee can be higher than local condo fees running in the $500+/month range here in the Plymouth / Carver area where I recently sold one and have another under contract.The other interesting feature is that there is no obvious distinction in our MLS (MLS PIN) between a manufactured home and a trailer home, except for verbiage in the listing description. 

There are going to be hurdles and obstacles that you will need to overcome prior worrying about scaling.  

But it's all on a scale... most typically, the more money you save (equity cushion), the higher the risk factors.

As you scale in units, you get some efficiencies.

Scale calories with activity level.

Now I imagine this is some what subjective and is possibly even different from single family to multi family or from urban to suburban but the questions I put out on the table is:What scale do you use to classify neighborhoods and properties?

There are the big box stores (HD, Lowes, Floor & Decor) where you will find middle of the road materials at middle of the road prices, then there are the higher end producers (Sugatsune, Andersen, Geberit) that you buy direct from the manufacturer.

They can get instant geographic and niche diversification, get into larger deals offering advantages over smaller deals (scale/forced appreciation) while they learn  how the big players operate and leverage that to do some of their own deals.  

The scale of these deals is intimidating, but the feedback and info here on BP is really helping me press on!