Also, do any of your funds (after accounting for the above) ever go into a money market or other interest bearing accounts, such as dividend stocks, etc?

More realistically, if there's a veteran willing to give up re-using their VA loan entitlement amount in exchange for top dollar on the sales price, that's for the listing agent to proactively put in the listing description, and have a stock flier/email to send back when inquiring buyers/agents ask.

. - Older housing stock in some areas may require more upkeep. - Strict local regulations can also sometimes increase compliance-related maintenance costsCost-saving strategies I've seen help:- Preventative maintenance programs can help reduce overall costs obviously - Some investors report success with in-house maintenance teams for larger portfolios- Energy-efficient upgrades can help reduce utility costs in the long runYour specific costs will depend on factors like the age and condition of your properties, your management style, and the specific neighborhoods you're invested in, but hope this helps!

I have tried to get financing in DR, and I keep running into dead ends. 

I am NOT interested in owning any more real estate (retired here man) so I had planned on just paying my 15% long term Capital Gains tax rate and moving on to my "safe money" retirement program of MYGA's / CD's and High yield Savings account / Bonds / some Stocks.

They lend money in 1st position to growing companies and even to REITS, they can be bought/sold for free on your phone, they pay from 10-14% yearly dividends, and their stock prices have been slowly trending up last 4 years?

Unless you're in a place to do a 1031 exchange (which can have higher transaction costs, depending on the situation), there likely is a significant amount of capital gains to pay upon sale of a property for reinvesting, or if investing in alternate markets like stocks, bonds, CDs, etc. 

The home is in the name of his dead brother and he doesn't have a will supporting he is the owner. 

My grandfather is dead and my great aunts, that the property was supposed to go to, are in their nursing homes now with dementia and it seems no one (their kids) is interested (or they may just not have the funds) in restoring it.

I know it’s a long reach to still keep him on the job after all I’ve been through with his people but understand I’m on a tight schedule and have a ticking dead line to complete.