At minimum, I am looking for the name of the deceased, a name of the personal rep/heir, and a name/contact for the attorney involved. 

As long as the money went from you to the title company it should be under your name and still belong to YOU until there is an agreement to release it. 2.

We started with an offer of $1,000, but after some back-and-forth, we reached an agreement at $1,500.

If we rent to own, they are OK, but we cant refinance because we don't have the deed.Are there any unique scenarios to help us get the property for little money out of pocket, we have the ability to have the deedSign a lease agreement with a purchase option that allows you to buy the property at an agreed price at the end of the lease term, consider establishing a partnership with the seller to jointly invest in property repairs and improvements.

We have a 650 minimum , but prefer 700 

OccupancyMost lenders require a minimum occupancy rate of 85%.

It's worth mentioning I also require tenants to have their own renters insurance policy with at least 100k minimum liability.

They have land under contract, $2B in agreements signed so far, so that’s it really.

OUTSIDE of coastal counties/cities (within 60 miles of the Gulf & East Coast), wind/hail deductibles are typically 1% or 2% of the building limit on file, and can many times come with a minimum deductible as well (typically $5,000 or $10,000). 

If the answer is yes, then it's a no brainer to make minimum payments on your 2.8% interest rate mortgage, and use the funds that you would have paid extra to pay it down faster, to either invest in more real estate, the market, or anywhere else where you can get a ROI > 2.8%.If the answer is no, then feel free to aggressively pay it down as fast as possible, to become debt-free faster, and just have a large amount of money in savings or to splurge with.The bottom line is that your 2.8% mortgage is GOOD debt.