If a builder announces a new project in an area, then what happens to the neighboring property prices?Do they increase or decrease due to supply or what?I would really appreciate if anyone can help me in this?ThanksHarsh

Assembly Row near by. 

@Brandon LewisFor investment properties I look for several key indicators- Local businesses/restaurants/shopping centers near by- Easy access to public transportation- Proximity to local schools and the quality of those schools- Investment in the area (is the area being built up/commercialized?)

What happens if the owner occupants just get tired of having renters nearby and enact HOA rules to prohibit rentals. 

Compare your property to similar, nearby rental properties to see if it's typical to include these appliances.

Check out Events near you https://www.biggerpockets.com/forums/521-events-and-happenings, you'll sure to meet nearby experienced investors 

I have never had one of my "for rent" signs taken - but I imagine if that did happen, it might not just be a prospective tenant that took it, it could be a landlord nearby who does not like competition.

Prince George's has a slew of challenges compared to Montgomery County and Alexandria and Arlington County near by.

is the 20mil based on comps of something nearby that have sold?

  #4 You can try to approach any nearby ALF or rehabilitation or mental health company and ask if they are willing to expand their portfolio and you can lease it to them for 2 or 5 years (usually 1.5 or 2 or 2.5 times standard rent).