Capital expenses after/while the unit is in service is depreciated per its schedule or deducted in the same year under de minimus rules. 

You can hedge your bets by charging them higher security deposits too. you can charge them 1 month rent security deposit and 1 month rent new move in fee non refundable or something. note Delaware law states the most you can charge for security deposit is 1 month rent. this doesnt mean you cant charge first month rent in addition to this and other admin fees.

They had a home in Wilmington, Delaware that they sold and wanted to rent back but she says her daughter-in-law did some things so they are not able to rent back.

Its a very desirable location in a small cul-de-sac. interesting to see peoples point of view.

Quote from @Craig De Borba: Hi All,I’ve been learning a lot reading though the threads in this community and finally have something to post about.My background: RE appraiser and loan financing way back pre-2008 crash, helped family landlord multi-units while growing up.Situation:Inherited a duplex but thanks to the change in California Prop 19 it will be reassessed to current market value.

I am also certain that many HOA's are getting complaints about AirBnb type places.My son is a plumber in the area who does new build and he is crazy busy, he said there are apartment blocks going up all over town and he recently worked on a cul-de-sac of houses that were all being built to rent out by one investor, even the surrounding areas like Santa Clara are being built up.We keep looking for another rental there but the Californians who move in are able to pay over the quoted prices and do it in cash.So it is hard to compete.

@Paul De LucaHi Paul and thank you for your input.

Between Rosarito, Valle de Guadalupe and Ensenada there is non stop tourist activity.

Also consider working with @Paul De Luca above who works with a ton of investors!

I live in Havre de Grace and would love to share my experiences with you.