Weight Loss Diet Suggestions?

No, 1400 calories a day is not reasonable. You're supposed to take your deficit from your TDEE, not your BMR. I calculated your TDEE based on 3-5 hrs/week of moderate exercise, and your TDEE was 3411, BMR was 2200, and calories to lose 1 lb per week (TDEE- 20%) was 2729.

Also, you don't need to eliminate foods to lose weight, you need to be in a calorie deficit. If you don't want to eat certain foods, go for it, but cutting them out of your diet isn't going to make you lose weight. Neither soda or sugar make you fat, a calorie surplus does that. And dietary fat is not bad, you actually need it to absorb certain nutrients and it helps keep you feeling fuller longer.

Read this, it will help:

http://www.myfitnesspal.com/topics/show/1080242-a-guide-to-get-you-started-on-your-path-to-sexypants

You need to eat way more. Just because you cut calories drastically doesn't mean you'll get good results. I've seen stunning, yes stunning, results from those who don't cut calories and just make better choices in what they eat.

And no, I don't think kgeyser is suggesting you can eat mcdonalds and pizza. Sure you can lose weight eating those but eventually you will feel like crap.

Based on what you said, are you suggesting I can eat McDonalds / Pizza / Fried Chicken / etc and still lose weight as long as it all totals to < 2729 cals?

Could you? Yes. Am I telling you to go out and eat all those things? No. People should eat foods they like and enjoy.

There is no need to avoid any food during weight loss; just work it into your calorie and macro goals. People on this site enjoy all of those foods as part of a balanced, healthy diet - the key being balanced and healthy. You need to hit macro and micronutrient goals each day for body composition and health. I eat chocolate or ice cream every single day. I also eat veggies, yogurt, fruit, whole grains, lean proteins every single day. It doesn't have to be one extreme or the other. People who are successful with weight loss eat the way they plan on eating for the rest of their lives during weight loss. If you plan on giving up pizza, fast food, and fried chicken forever, then do it. If you plan on eating them, then figure out how to work them into your life in moderation (whether by portion size or frequency).

You don't eat your BMR to maintain. Your BMR is the amount of calories you would need just to exist, like if you were lying in a coma. Your TDEE (total daily energy expenditure) is what you eat to maintain your weight.

The complications of having such a large deficit (1400 cal in your case) are muscle loss (remember your heart is a muscle), fatigue, hair loss, impaired mental function, dizziness, hallucinations, fainting, as well as other possible medical issues. You don't have that much to lose and your body cannot handle a huge deficit like that.

Also, it doesn't matter how much you've been weight lifting, you're not getting adequate protein to sustain your muscle at your size. I eat more protein than you. It's not just the resistance training that is needed, it's the protein as well. This is why hitting your macros is important for body composition.

As for complications of eating at 1400- short term, probably not a whole lot of bad effects at your age, other than not having the energy to keep up with 6 days a week workouts. You could do it short term and probably lose your weight fairly quickly, but I would suggest throwing in a high calorie day once a week to keep you sane.
Long term, eating at that high of a deficit would probably result in some muscle loss. If you took your calories from simple carbs and made sure you ate enough protein and an adequate amount of healthy fat, you would minimize that loss, but you definitely wouldn't want to stay at that level for more than a few weeks.

Get some advice from the bodybuilders on here who do the cut/bulk cycles.