Since this is a rehab, you shouldn't have to worry about offering a builders warranty but here's some things I've become accustomed to doing to make the warranty, sale process and transaction process easier.  

It could also be worth it to test the market and see what kind of offers you receive. 

They mentioned how Dom helped them narrow down neighborhoods for a multi-family purchase and even flagged potential zoning issues before they made an offer.

Your best bet is to keep liquid cash and avoid PMI.What conventional loan/lender is offering less than 20% down and no PMI? 

You'll see some familiar names thrown around a lot: Stessa, Apartments.com, RentRedi, TenantCloud, Innago, RentManager, Avail, Rentec Direct, Doorloop, etc.I recommend you search for each app online and see what they offer, how much they charge, etc.

I've lived in other states throughout the country and each has its pros and cons but NJ does offer a lot and is a great place to live. 

Many distributors also offer financing and can give you an idea of what monthly loan payment you’d be looking at.

So, here is my buy offer, take it or leave it, end of story. 

Don’t know how or where tenant washed clothes for 2 months; a laundry is nearby.

There are even ADU grants being offered.