A few of the sellers I've spoken with  and who previously offered the broker fee as a marketing tool are getting frustrated with this type of behavior and want to shift away from offering a co-op and instead make it a negotiable concession when genuine effort is made on the part of the buyer agent.  

I use it quite often as well as other cryptocurrencies and they're gaining popularity.

Ocean City is the most popular beach town and is a 3hr drive from Washington D.C.

You can use this tool to estimate future property taxes: https://treas-secure.state.mi.us/ptestimator/ptestimator.asp

Have you seen the Property Llama tool by Bigger pockets member Chris Lopez? 

In general lines of credit and CC are not great tools for long term investments.

Investing in multifamily properties in Philadelphia is popular due to the city's steady population growth, job opportunities, relatively affordable property values, and solid rental demandPhiladelphia’s multifamily market offers a range of opportunities, from high-end neighborhoods to up-and-coming areas with great cash flow potential.

I too am active duty and have utilized my VA several times to expand my portfolio as it is a great tool to use if you’re willing to live in the property for the required 12 months.

BiggerPockets (BP) does have some tools and templates that can help keep you organized (like checklists for inspections, title, and earnest money).

It is the most popular software in the industry, and all CPAs know how to navigate it, which is nice.2I use it for my portfolios as well.