Putting 50% down or anything above the absolute minimum DP reduces cash flow, it does not increase cash flow.

My thoughts are pretty much based on events in the past few months (ie Paris, San Bernardino, and many many massacres) as well as the 2016 cover of The Economist, ie they have a baby staring at a globe which represents the growing global pandemic of a virus patented decades ago and spread by GMmosquitoes and effective in reducing brain mass/intelligence of most children of infected mothers.That plus school shootings, massacres, water shortages, power outages, and a possible shutdown of EBT Food Stamps could quickly spark a chaos scenario in America's most populous multifamilies & cities.Look around at how many commercial/retail spaces are vacant.

Maybe it's 14 days if xyz is on your credit report, maybe it's 45 days if abc is on your credit report, or maybe it's a sliding scale with 14 days having zero impact, 14-29 having a very reduced impact, and that sort of thing. 

It has nothing to do with what you can personally do to improve the income or reduce the risk.

Here's the Homeaway statement re: the service fee:"We are announcing changes that enable us to provide the best experience and most value to travelers and vacation rental owners and managers.We are revising our traveler guarantees to provide even more coverage, reducing prices for owners and managers, and changing the way we monetize our business.Now, travelers who book or pay directly through HomeAway’s sites will have the full amount of their booking protected against things like misrepresented or double-booked properties.

Having purchased several 100+ year old buildings, I can assure you two layers of lath-and-plaster may keep the wind out (or at least reduce it to a light breeze), but it certainly does not keep the heat in.

If the seller refused to negotiate to reduce price after inspection, I would not give the report to them.

Has anyone had any experience with a soundproofing membrane that goes under engineered hardwood and claims to reduce footfall shock sound from traveling between levels?

If you are going to have to shell out 35k in a new roof and HVAC system withing the next 5 years, that monthly you set aside for that will reduce your return.

(a) A rental agreement shall not provide that the tenant: ...(8) agrees to pay a late charge prior to the expiration of the grace period set forth in section 47a-15a or to pay rent in a reduced amount if such rent is paid prior to the expiration of such grace period; or (9) agrees to pay a heat or utilities surcharge if heat or utilities is included in the rental agreement."