I don't want to bore anyone with the statistics unless you are interested, but we have 15% of our properties still vacant while having unprecedented need for housing in our poorer neighborhoods. 

And if so, which are the most important statistics to look at?

There are statistical based cost segs providers that do not do the full report unless you get audited that are significantly cheaper, but I won't address those as I have had no clients use them.

Latest income statistics:  https://www150.statcan.gc.ca/n1/daily-quotidien/210323/dq210323a-eng.htmInterprovincial migration:  https://www150.statcan.gc.ca/n1/pub/91-209-x/2021001/article/00001-eng.htmDemand for rental properties can be found at CMHC: https://www.cmhc-schl.gc.ca/en...

The statistics of the quantity of people that actually run the contract to fruition and end up owning the MH is 2 out of 10. 

I would look to your building codes for new units as to the parking requirement, with the ADA, larger complexes will be effected as to the parking count per unit. 1-4 single family may not be covered but that should give you an idea of the statistical requirement based on concentrations.I would want at least 1 1/2 spaces per unit with a 1-4, meaning 6 spaces with a 4plex.If this is "downtown" your market may be different too, many urbanites walk, take public transportation or bike and won't own a vehicle, look to the make-up of the tenant base.Look to comparable units and what parking might be.As to valuation, parking space adjustments will be objective, guess, I would use the cost approach of adding additional parking.

Bureau of Labor Statistics.

If you're looking to flip in those areas, investors will statistically be your likely buyer depending on neighborhood (e.g., Allentown is ~33% owner occupied overall).

You can get the statistics for MLS sales and what average percentage discount from list price they have actually sold at.  

Please give me a call at 954-383-0090 Hereby my website it is connected to the MLS in Broward with neighborhood statistics etc buysellhomesinbroward.com