i do not however use it for heat mine is an AC only unit I believe not a heat pump unit.If you're whole unit is relying on one mini split for ac and heat that surprises me just given if you shut a bedroom door you'd not have heat from the split that I assume is in the living room. 

There is transactional funding that can work and we do that as well doing one on Monday but again its much larger dollars and you get your fee in 24 to 48 hours with little to no risk. 

I have been able to scale up to 12 doors in 2 years so definitely recommend this area.

That way, you can get your foot in the door, start building equity, and stay at home a bit longer to save more money.You could also consider the BRRRR method where you buy a fixer-upper, rehab it to add value, rent it out, and then refinance to pull your cash back out.

that we’ve learned in our 24 years, managing almost 700 doors across the Metro Detroit area, including almost 100 S8 leases:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

I'm currently using Rent Redi for 12 doors. 

You could leverage the value of the entire four plex to put towards a larger asset or try to 1031 exchange it. again, i am no expert but I would consider myself a fairly savvy investor.

There might be larger buildings available but I don’t follow that market too much through the MLS, only some NH Landlord Facebook groups which are both owner friendly and agent friendly.

Are there any other programs you recommend for people wanting to get into larger multifamily?

  $100 a door doesn't help cover the unexpected repairs.