I just bought a storage facility in March for 60% of market value and I believe it will double in value by year end.

If you need the additional capital from a sale, go that route.And while it is true that a 4 plex is valued based on comps, what many people seem to forget is that a GRM valuation is a standard valuation technique on a residential appraisal.  

Since you struggled to qualify for the conventional for 300 k is it easier to now qualify for the refi or are the same standards used?

My standard answer to what I'm doing on the weekend is that I'll be in my recliner, alone, watching whatever's on and putting away a fifth of Cutty.

Pre covid-$175 sq ft for construction for 3 and/or 4 bed/2 full bath 1250 sq ft apt's in a triplex and $25/sq ft for all soft costs-architect, permits, SAC, park fees, landscaping, and various other soft costs ect but not including the cost of a standard sized lot.

Also this should be fairly standard but make sure the electrical is all grounded, I just spent about $5,000 adding outlets and grounding the electrical in a 1950s house to bring it up to today’s code which also meant outlets every six feet instead of one or two in a room.

My question is: if the number look good-  is it worthwhile to pursue this and look at it more as a standard multi family investment to gain experience into the MHP Asset class, or to simply stay away from park owned units? 

Industry standards pay out debt at hard money rates (10-12% these days with or without points) and first position lien.

If the seller doesn't have a realtor, you can pay an attorney to write up a standard contract for a lot less than that.

But you need that standard in writing and published and to follow it to avoid any discrimination issues.