You can find out which banks have an appetite for mobile home parks by asking the MH/RV brokers in your area, networking through other owners of parks in your area, or simply obtain list of the smaller banks in your area/region and call them to see if they have lent on parks in the past.

If you're concerned that you won't be able to find a deal later down the road: I wouldn't let speculation drive a decision beyond your risk appetite.

It just depends on your risk appetite.

As an agent you have to understand their goals and appetite for risk, then you can (hopefully) help find them something that fits there needs. 

The pandemic ignited a boom in a sweat equity strategy known as multifamily syndication, where investors pool their money to purchase apartment communities, and a sponsor manages the property’s rehab business plan and oversees daily operations.This year, a leading equity crowdfunding site conducted what’s believed to be the largest-ever survey of individual real estate investors in order to gauge their appetite for investing in a pandemic.

Also, most lenders will not have an appetite to lend on a park with all park owned homes, so keep that in mind. 

I would recommend handing off the day to day to someone else4) depends on how you fund the first property5) USA... 6) My biggest concern is appetite to put more rent controls in place and/or tying rent to the unit, not to the tenant, but these concerns are provincially legislated (not federally).

Hood systems/fire suppression also very costly.You mentioned long term tenants for all units, but what are current and historic sales for commercial spaces?  

There are 3 different approaches to exchanging funds, so you will want to develop a strategy around your risk appetite and financial goals.

I presume that there would be a lot of buyers with an appetite to buy a 2 unit property (i.e high demand) but the pool of investors would be lesser for large multifamilies (i.e. low demand) and as such, the large multifamilies would appreciate at a lesser rate.