According to your profile, you'd be a representative of a Mexican real estate agency I'd never heard of, even though I've been investing in Mexico since 2017 so I googled the name you give and, surprisingly, I didn't find a proper website, just an influencer-like Instagram account.

On the other hand I don’t want to be cheap and losing money in the long run bc I’m not properly fixing things.

If they're delinquent after only 2 months, they're either facing sudden life changes or you did not properly screen them to begin with.

2) Their contractor must be properly licensed and insured and we require copies of all this.

Also, there’s much to delve into on of those scenarios, like what type of cashflow or investment do you want, etc. residential, multi-res, small multi-res, commercial, industrial, etc.There seems to be fewer deals around these days and this typically benefits the more experienced and skilled investors but there are always multiple investors that get “tripped-up” in these markets due to them relying on recent “fortunate” market circumstances only to realize the markets cycle and they weren’t prepared or didn’t underwrite properly to account for unforeseen potential.There are more considerations, but this is a start.

For property management, I am personally a fan of managing your first property (with proper education or mentorship before beginning) since this is where you will learn first hand what is required in managing a tenant.

I can have multiple one use code for contractors so I can control access without physically going there.You do not need to carry the key, just need to keep track all codesMain disadvantage is that the locking requires the door to close properly, otherwise the tenant may not know the door is not licked.

At that class of property, the delinquencies are not low and have to be properly accounted for.The reason I asked how long you have owned is that it takes a while to recognize the sustained expenses.Obvious is to get rid of the poor tenant. 

There are a lot of good meetups for real estate investors in the area that would be good to grow your network and learn from others that are and have been in your shoes as a new investor, message me and I can share on some specific monthly meetups.Also sharing some multifamily data, this is Boston proper so it has an interesting trend compared to the rest of Massachusetts.

I would advise running your rents conservatively and vet property managers properly before signing anything.