We have an insurance policy on the rental house (through State Farm), that includes a personal liability section, which is essentially equal to our current net worth.Given that a tenant could sue for more than this if an accident occurred, we are thinking about adding either LLC or an umbrella policy (or both) as extra protection.Any advice on which way to go, and if LLC, any recommendations for a law firm or company the Indianapolis area?

When all the dust settles, and the  person searching is tired and discouraged and gives up, Jerry may not have bought  a single lot, but he's made some money from the training he sold you, which was his main goal from the beginning!

We don't allow any "deal-making" in the forums, which includes advertising your services or properties, looking for partners, etc.

Still, considering how difficult it is to find a good real estate focused accountant, limiting your search to local providers usually gives you too few options.Expand your search to include remote CPAs.

The first apartments I rented as the owner, were previously rented by the former owner at $150 month including utilities. 

The main criteria is consistency with adopted plans.

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.

If you’re renting an apartment building to mostly Section 8 tenants, the main difference from single-family or smaller multifamily properties is scale—you’re dealing with more units, so you’ll need solid systems for maintenance and tenant management.

Is that the main goal or something else?

STR insurance provides broader coverage, including liability, property damage (even non-guest-related), and gaps Aircover might not cover.For damages caused by guests, document everything (photos, receipts, estimates) and file a claim through Airbnb.