On site parking consists of 65 total spaces that is available to all residents.

Varies by area but anything modern is hot right now.

While you’re at it, you build the streets, the street lights, the sewer lines, the required community green spaces, and you take care of them for the rest of all time.

But yeah I would get rid of if and use that space to build a Adu or something.

I'm looking for layout ideas and a design that looks a little nicer than a generic building and maximizes the limited space I have.

Give both of them a notice and explain they are entitled to quiet enjoyment of their space and when quiet hours are (look up your local info for the city). 

Not only is there massive unit shortage in the rental space, but there is price impacts forcing tenant movement, and that means higher than average activity. 

I found commercial property interesting, but who will rent the space?

they can be more efficient than modern high-efficiency furnaces in some cases but they take a bit of maintenance and the radiators can be cumbersome in the rooms.

Here is a list of due diligence item I use on my MHP investments:Check zoning and permitting compliance (city zoning)Check local law compliance (with Sherriff and/or Police)Search City Council minutes for any adverse mentionsCheck with State Department of Public Health's Division of Community Environmental Protection (CEP) for compliance violationsCheck with property neighbors for any disputes or pending legal actions Water - Check with water provider for any open or recent issuesSewer - Check with Sewer provider for any open or recent issues or complaintsElectricity - Check with electricity provider for any open or recent issues Rent roll with space number, name of resident, move-in date, renter or owner occupied, number of occupants, monthly rent, additional charges, current balance due and any relevant notes about the residentList of capital expenditures for the last 3 yearsGet last 2 years of Profit and Loss statementsGet last 2 years of Tax Returns for the LLC/Park12 months of Bank Statements for the LLC/ParkCurrent Accounts receivable statementsBuild proforma for next 5 years using rent roll and expensesGet owed taxes to City/County/Local govGet Insurance Quote of commercial liability insurance2 years of utility billsProperty Tax bills for last 2 years List of park owned home including copies of “rent to own” or sales contractsGet list of vendors and contract status for each vendorTalk with on-site property manager regarding issuesConduct Onsite Property Visit with property managerSpreadsheet detailing who pays all utilities including water, sewer, gas, electric, trash, cable, etc.